Part XVIII. Guides

Chemical Name CAS-Number	Colour/Form	Boiling Point (°C)	Melting Point (°C)	Molecular Weight	Solubility in Water	Relative Density (water=1)	Relative Vapour Density (air=1)	Vapour Pressure/ (Kpa)	Inflam. Limits	Flash Point (°C)	Auto Ignition Point ( °C)
ACETONE 67-64-1	colourless liquid	56.2	-95.35	58.08	misc	0.7899		2.0	2.15 ll 13.0 ul	-20	465
ACETOPHENONE 98-86-2	monoclinic prisms or plates; slightly oily liquid; colourless liquid; liquid forms laminar crystals at low temperature	202	20.5	120.16	insol	@ 15(°C)/15 °C	4.14	@ 25 °C		82 oc	570
ACETYL BROMIDE 506-96-7	colourless liquid	76	-96	122.96	sol	@ 9 °C		@ 21
BENZOPHENONE 119-61-9	white crystals	305	49	182.2	insol	1.1
p-BENZOQUINONE 106-51-4	yellow monoclinic prisms from water or petroleum ether; greenish-yellowish solid		115.7	108.09	sl sol	@ 20 °C/4 °C	3.7	@ 25 °C		38-93 cc	560
1-BROMO-2-PROPANONE 598-31-2	colourless liquid; rapidly becomes violet even in absence of air	137	-36.5	136.99	sl sol	@ 23 °C	4.75	1.20
1-CHLORO-2-PROPANONE 78-95-5	colourless liquid	119.7	-44.5	92.53	sol	@ 25 °C				40 oc
CHLORACETYL CHLORIDE 75-36-5	colourless to slightly yellow liquid	106	21.77	112.95		1.4202		2.35
2-CHLOROACETOPHENONE 532-27-4	colourless to grey crystals	247	56.5	154.6	insol	@ 15 °C	5.3	< 10 Pa		118
CYCLOHEXANONE 108-94-1	oily liquid; water-white to pale yellow liquid	155.6	16.4	98.14	sol	@ 25 °C; 0.9478	3.4	@ 26.4 °C	1.1 ll 9.4 ul	63 cc	420
CYCLOHEXANONE OXIME 100-64-1	hexagonal prisms from petroleum ether	206-210	89-90	113.18	sol
CYCLOPENTANONE 120-92-3	water-white, mobile liquid	130.6	-51.3	84.12	insol	0.948	2.3	@ 25 °C		31cc
DIACETONE 123-42-2	colourless liquid	167.9	-44	116.16	misc	@ 25 °C	4.0	0.13	1.8 ll 6.9 ul	66 oc	acetone-free 603 commercial 643
DICHLORACETYL CHLORIDE 79-36-7	colourless to yellow fuming liquid	107 - 108		147.4	decomposes	1.53	5.09	3.06	11.9 ll ? ul	66	585
DIETHYL KETONE 96-22-0	colourless, mobile liquid	101.7	-39.8	86.13	v sol	0.814	3.0	@ 25 °C	1.6.	13 oc	452
DIKETENE 674-82-8	clear, colourless liquid when pure	127.4	-6.5	84.08	sol	1.0897	2.9			34 oc
2,6-DIMETHYL-4-HEPTANONE 108-83-8	colourless liquid	168	- 42	142.2	insol	0.805	4.9	0.23	@ 93 °C ul	49 cc	396
DIPROPYL KETONE 123-19-3		144	-33	114.18	insol	1.407
ETHYL AMYL KETONE 106-68-3		167.5		128.21	insol	@
ETHYL BUTYL KETONE 106-35-4	clear liquid	@ 765 mm Hg	-39	114.21	insol	0.8183		@ 25 °C		46 oc
2,5-HEXANEDIONE 110-13-4		194	-5.5	114.4	v sol	0.737
ISOPHORONE 78-59-1	water-clear liquid	@ 754 mm Hg	-8.1	138.2	sl sol	0.9229	4.77	@ 25 °C	0.8 ll 3.8 ul	84 cc	460
KETENE 463-51-4	colourless gas	- 56	-150	42.0	reacts		1.4			Flammable gas
MESITYL OXIDE 141-79-7		The substance can presumably form explosive peroxides • Reacts violently with strong oxidants • Attacks many plastics	3
4-METHOXY-4-METHYL-2-PENTANONE 107-70-0	water-white liquid	147-163		130.21	v sol			@ 25 °C
METHYL AMYL KETONE 110-43-0	water-white liquid	151.5	-35.5	114.18	v sol	@ 15 °C; 0.8068	3.9	@ 25 °C	@ 66 °C ll	39 cc	393
METHYL BUTYL KETONE 591-78-6	colourless liquid	128	-57	100.16	sl sol	0.8113	3.5	@ 25 °C	1.3 ll 8.0 ul	25 cc	423
2-METHYLCYCLO HEXANONE 583-60-8				112.19
METHYL ETHYL KETONE 78-93-3	colourless liquid	79.6	-86.3	72.10	v sol	0.805	2.41	10.33	@ 93 °C ul	-9 cc	404
5-METHYL-3-HEPTANONE 541-85-5	colourless liquid	157-162		128.24	insol in water	0.820-0.824 /20 °C		@ 0.27		59
5-METHYL-2-HEXANONE 110-12-3	colourless liquid	144	73.9	114.21	sl sol	0.888 /20 °C	3.9	0.60	@ 93 °C ul	36 cc	191
METHYL ISOBUTYL KETONE 108-10-1	colourless liquid	116.8	-84.7	100.16	sl sol	0.7978	3.5	2.09	@ 93 °C ul	24 oc	460
METHYL ISOPROPYL KETONE 563-80-4	colourless liquid	94	- 92	86.1	sl sol	0.8	3.46	@ 29.6 °C	1.2 ll 8.2 ul	3	456
METHYL PROPYL KETONE 107-87-9	colourless liquid	101.7	-77.8	86.13	sl sol	0.805	3.0	@ 25 °C	1.5 ll 8.2 ul	70 cc	505
METHYLVINYL KETONE 78-94-4	colourless liquid	81.4	-7	70.09	sol	@ 25 °C	2.41	@ 25 °C	2.1 ll 15.6 ul	-7 cc	491
2,4-PENTANEDIONE 123-54-6	colourless or slightly yellow liquid	@ 746 mm Hg	-23	100.12	v sol	@ 25 °C	3.5	0.39	2.4 ll 11.6 ul	34 cc	335

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:05

Sulphur Compounds, Inorganic: Chemical Identification

Chemical Formula	Chemical	Synonyms UN Code	CAS-Number
7727540	AMMONIUM PERSULPHATE	Ammonium peroxydisulphate; Diammonium peroxydisulphate; Diammonium peroxydisulphate; Peroxydisulphuric acid, diammonium salt UN1444	7727-54-0
7773060	AMMONIUM SULPHAMATE	Amcide; Ammonium amidosulfonate; Ammonium amidosulphate; Ammonium sulphamate; Sulphamate; Sulphamate dammonium	7773-06-0
7783202	AMMONIUM SULPHATE	Actamaster; Ammonium sulphate; Diammonium sulphate; Dolamin; Mascagnite; Sulphuric acid, diammonium salt	7783-20-2
12124991	AMMONIUM SULPHIDE	Ammonium bisulphide; Ammonium hydrogen sulphide; Ammonium hydrosulphide; Ammonium mercaptan; Ammonium sulfhydrate; Monoammonium sulphide; True ammonium sulphide	12124-99-1
7778189	CALCIUM SULPHATE	Crysalba; Drierite; Gibs; Sulphuric acid, calcium salt (1:1); Thiolite	7778-18-9
1344816	CALCIUM SULPHIDE	Calcium polysulphide; Lime-sulphur; Lime sulphur; Neviken; Orthorix; Sulka	1344-81-6
75150	CARBON DISULPHIDE	Carbon bisulphide; Carbon sulphide; Dithiocarbonic anhydride; Sulphocarbonic anhydride UN1131	75-15-0
463581	CARBONYL SULPHIDE		463-58-1
7783064	HYDROGEN SULPHIDE	Hydrogen sulphuric acid; Sulphureted hydrogen; Sulphur hydride UN1053	7783-06-4
7727211	POTASSIUM PERSULPHATE	Anthion; Dipotassium persulphate; Peroxydisulphuric acid, dipotassium salt ; Potassium peroxydisulphate UN1492	7727-21-1
16731558	POTASSIUM PYROSULPHIDE	Dipotassium disulphide; Disulphurous acid, dipotassium salt; Potassium disulphide; Pyrosulphurous acid, dipotassium salt	16731-55-8
1312738	POTASSIUM SULPHIDE	Potassium monosulphide UN1382 UN1847	1312-73-8
7631905	SODIUM BISULPHITE	Hydrogen sulphide sodium; Monosodium sulphide; Sodium hydrogen sulphide; Sodium sulphide; Sodium sulhydrate; Sulphurous acid, monosodium salt	7631-90-5
7775146	SODIUM HYDROSULPHITE	Dithionous acid, disodium salt ; D-ox; Hydrolin; K-brite; Reductone; Sodium dithionite; Sodium dithionite; Sodium sulfoxylate UN1384	7775-14-6
7681574	SODIUM METABISULFITE	Disodium disulphide; Disodium metabisulphide; Disodium pyrosulphide; Disulphurous acid, disodium salt; Pyrosulphurous acid, disodium salt; Sodium disulphide; Sodium metabisulphide; Sodium metabisulphite; Sodium pyrosulphide	7681-57-4
7775271	SODIUM PERSULPHATE	Sodium peroxydisulphate; Peroxydisulphuric acid, disodium salt UN1505	7775-27-1
7757826	SODIUM SULPHATE	Disodium sulphate; Salt cake; Sodium sulphate anhydrous; Sodium sulphate; Sulphuric acid, disodium salt; Thenardite; Trona	7757-82-6
1313822	SODIUM SULPHIDE	Sodium monosulphide; Sodium sulphide, sodium sulphide UN1385	1313-82-2
7757837	SODIUM SULPHITE	Anhydrous sodium sulphide; Disodium sulphide; Sodium sulphide anhydrous; Sulphurous acid, disodium salt	7757-83-7
7772987	SODIUM THIOSULFATE	Ametox; Antichlor; Chlorine control; Disodium thiosulphate; Hypo; Sodium hyposulphide; Sodium oxide sulphide; Sodium thiosulphate; Sodium thiosulphate anhydrous; Sodium thiosulphate; Sodothiol; Sulfothiorine; Thiosulphuric acid, disodium salt	7772-98-7
7704349	SULPHUR	Flour sulphur; Flowers of sulphur; Ground vocle sulphur; Hexasul; Kocide; Tesuloid; Thiolux; Thiovit UN2448 UN1350	7704-34-9
7446095	SULPHUR DIOXIDE	Sulphur dioxide, sulphurous acid anhydride; Sulphurous anhydride; Sulphurous oxide; Sulphur oxide; Sulphur superoxide UN1079	7446-09-5
7783600	SULPHUR TETRAFLUORIDE	Tetrafluorosulphurane UN2418	7783-60-0
7446119	SULPHUR TRIOXIDE	Sulphan; Sulphuric anhydride; Sulphuric oxide UN1829	7446-11-9
7791255	SULPHURYL CHLORIDE	Sulphonyl chloride; Sulphuric oxychloride; Sulphuryl chloride UN1834	7791-25-5
7719097	THIONYL CHLORIDE	Sulphinyl chloride; Sulphur chloride oxide; Sulphurous dichloride; Sulphurous oxychloride; Thionyl chloride; Thionyl dichloride UN1836	7719-09-7

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:07

Sulphur Compounds, Inorganic: Health Hazards

Chemical Name CAS-Number	ICSC Short-Term Exposure	ICSC Long-Term Exposure	ICSC Routes of Exposure and Symptoms	US NIOSH Target Organs & Routes of Entry	US NIOSH Symptoms
AMMONIUM SULPHAMATE 7773-06-0				Resp sys; eyes Inh; con	Irrit eyes, nose, throat; cough, dysp
CARBON DISULPHIDE 75-15-0	eyes; skin; resp tract; lungs; CNS		Inhalation: confusion, dizziness, drowsiness, headache, nausea, shortness of breath, vomiting, weakness, irritability, hallucination Skin: may be absorbed, dry skin, redness Eyes: redness, pain	CNS; PNS; CVS; eyes; kidneys; liver; skin; repro sys Inh; abs; ing; con	Dizz, head, poor sleep, ftg, ner, anor, low-wtg; psychosis; polyneur; Parkinson-like syndrome; ocular changes; coronary heart disease; gastritis; kidney, liver inj; eye, skin burns; derm; repro effects
HYDROGEN SULPHIDE 7783-06-4				Resp sys; eyes; CNS Inh; con	Irrit eyes, resp sys; apnea, coma, convuls; conj, eye pain, lac, photo, corn vesic; dizz, head, ftg, irrity, insom; GI dist
POTASSIUM SULPHIDE 1312-73-8	eyes; skin; resp tract; lungs		Inhalation: cough, dizziness, drowsiness, headache, nausea, shortness of breath, sore throat, weakness, symptoms may have delayed effects Skin: redness, skin burns, pain Eyes: redness, pain, severe deep burns
SULPHUR DIOXIDE 7446-09-5	eyes; resp tract; lungs; skin	lungs	Inhalation: irritation of respiratory tract, cough, choking, sneezing Skin: on contact with liquid: frostbite Eyes: irritation burns	Resp sys; skin; eyes Inh; con	Irrit eyes, nose, throat; rhin; choking, cough; reflex bronchoconstriction; liq: frostbite
SULPHUR 7704-34-9	eyes; skin; resp tract; lungs	skin; resp tract	Ingestion: Inhalation: burning sensation, cough, sore throat Skin: redness Eyes: redness, pain, blurred visionburning sensation, diarrhoea

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:09

Sulphur Compounds, Inorganic: Physical & Chemical Hazards

Chemical Name CAS-Number	Physical	Chemical	UN Class or Division / Subsidiary Risks
AMMONIUM PERSULPHATE 7727-54-0			5.1
AMMONIUM SULPHATE 7783-20-2			8
CARBON DISULPHIDE 75-15-0	The vapour is heavier than air and may travel along the ground; distant ignition possible • As a result of flow, agitation, etc, electrostatic charges can be generated	May explosively decompose on shock, friction, or concussion • May explode on heating • The substance may spontaneously ignite on contact with air and on contact with hot surfaces producing toxic fumes of sulphur dioxide • Reacts violently with oxidants causing fire and explosion hazard • Attacks some forms of plastic, rubber and coating	3/ 6.1
CARBONYL SULPHIDE 463-58-1			2.3/2.1
HYDROGEN SULPHIDE 7783-06-4			2.3/ 2.1
POTASSIUM PERSULPHATE 7727-21-1			5.1
POTASSIUM SULPHIDE 1312-73-8	Dust explosion possible if in powder or granular form, mixed with air	Heating may cause violent combustion or explosion • May explosively decompose on shock, friction, or concussion • The substance may spontaneously ignite on contact with air forming hydrogen sulphide • The solution in water is a strong base, it reacts violently with acid and is corrosive forming sulphur dioxide	4.2
SODIUM HYDROSULPHITE 7775-14-6			4.2
SODIUM PERSULPHATE 7775-27-1			5.1
SODIUM SULPHIDE 1313-82-2			4.2
SULPHUR DIOXIDE 7446-09-5			2.3/ 8
SULPHUR TETRAFLUORIDE 7783-60-0			2.3/ 8
SULPHUR TRIOXIDE 7446-11-9			8
SULPHUR 7704-34-9	Dust explosion possible if in powder or granular form, mixed with air • If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.	On combustion, forms sulphur oxides including sulphur dioxide • Reacts violently with strong oxidants causing fire and explosion hazard	4.1
SULPHURYL CHLORIDE 7791-25-5			8
THIONYL CHLORIDE 7719-09-7			8

For UN Class: 1.5 = very insensitive substances which have a mass explosion hazard; 2.1 = flammable gas; 2.3 = toxic gas; 3 = flammable liquid; 4.1 = flammable solid; 4.2 = substance liable to spontaneous combustion; 4.3 = substance which in contact with water emits flammable gases; 5.1 = oxidizing substance; 6.1 = toxic; 7 = radioactive; 8 = corrosive substance

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:10

Sulphur Compounds, Inorganic: Physical & Chemical Properties

Chemical Name CAS-Number	Colour/Form	Boiling Point (°C)	Melting Point (°C)	Molecular Weight	Solubility in Water	Relative Density (water=1)	Relative Vapour Density (air=1)	Vapour Pressure/ (Kpa)	Inflam. Limits	Flash Point (°C)	Auto Ignition Point (°C)
AMMONIUM PERSULPHATE 7727-54-0	white crystals		120 decomp	228.19	v sol	1.98
AMMONIUM SULPHAMATE 7773-06-0	crystals (large plates); colourless, white crystalline substance; brownish-gray; bright yellow-orange crystalline solid		131	114.13	@ 10 °C; 2.16 kg/ kg	>1 (solid)
AMMONIUM SULPHATE 7783-20-2	colourless rhombic crystals; orthorhombic crystals or white granules; brownish gray to white crystals according to degree of purity			132.14	sol	@ 50 °C
AMMONIUM SULPHIDE 12124-99-1	yellow crystals		decomp	68.14	v sol
CALCIUM SULPHATE 7778-18-9	natural anhydrite crystals are colourless, rhombic or monoclinic; natural anhydrite crystals are orthorhombic, colour varies (white with blue, gray or reddish tinge, or brick red); insol anhydrite has same crystal structure as mineral anhydrite	1193	1450	136.14	sl sol	2.960
CALCIUM SULPHIDE 1344-81-6	deep orange malodorous liquid					@ 15.6 °C
CARBON DISULPHIDE 75-15-0	mobil liquid; clear, colourless or faintly yellow liquid	46.5	-111.5	76.14	0.2 g/100 ml	1.2632	2.67	@ 25 °C	1.3 ll 50 ul	-30 cc	90
CARBONYL SULPHIDE 463-58-1	colourless gas	-30	-138	60.08	1220 mg/l at 25 °C	@ 17 °C/4 °C	2.1	9412 mm Hg at 25 °C	12% ll 29% ul
HYDROGEN SULPHIDE 7783-06-4	colourless gas	-60.33	-85.49	34.08	1 g /242 ml	@ 0 °C;1.19 (gas)	1.189	@ -60.4 °C	4.3 ll 45 ul		260
POTASSIUM PERSULPHATE 7727-21-1	colourless, triclinic crystal; white crystal			270.3	@ 0 °C; 5.2 g/100 cc	2.47
POTASSIUM PYROSULPHITE 16731-55-8	white crystals or crystalline powder; colourless, monoclinic plates		190 decomp	222.32	v sol	2.34
POTASSIUM SULPHIDE 1312-73-8	white cubic crystals or fused plates; red or yellow-red crystalline mass or fused solid		912	110.26	v sol	@ 14 °C
SODIUM BISULPHITE 7631-90-5	white crystal or crystalline powder; granular powder; white, monoclinic			104.07	3.5 parts in cold, 2 parts in boiling	1.48
SODIUM HYDROSULPHITE 7775-14-6	white or grayish-white crystalline powder			176.10
SODIUM METABISULPHITE 7681-57-4	white crystals or white to yellowish crystalline powder		150 decomp	190.13	@ 100 °C	1.4
SODIUM SULPHATE 7757-82-6	white powder or orthorhombic bipyramidal crystals; monoclinic crystals from 160-185 °C		888	142.06	sol in about 3.6 parts	2.671
SODIUM SULPHIDE 1313-82-2	clear crystals; yellow or brick-red lumps or flakes; cubic crystals or granules; amorphous, yellow-pink or white crystals		1180	78.05	18.6 g/100 g	@ 14 °C/4 °C
SODIUM SULPHITE 7757-83-7	small crystals or powder; white powder or hexagonal prism			128.06	sol in 3.2 parts	@ 15.4 °C
SODIUM THIOSULPHATE 7772-98-7	powder; colourless monoclinic crystals			158.13	50 g/100 ml	1.667
SULPHUR BROMIDE 13172-31-1	yellow liquid	54	- 40	223.93	decomposes	2.63
SULPHUR DIOXIDE 7446-09-5	colourless liquid or gas	-10	-72.7	64.07	@ 25 °C	2.927 g/l (gas); 1.434 (liquid)	2.2	330
SULPHUR TETRAFLUORIDE 7783-60-0	gas	- 40	- 124	108.05	decomposes
SULPHUR TRIOXIDE 7446-11-9	alpha-form, asbestos-like needles; beta-form, asbestos-like neeedles; gamma-form, ice-like mass or liquid			80.07	sol in 100 parts			@ 25 °C
SULPHUR 7704-34-9	orthorhombic, cycloocta or alpha-sulphur, amber coloured crystals; monoclinic, cycloocta or beta-sulphur, light-yellow, opaque, brittle, needle-like crystals; sublimed & washed sulphur are in form of fine, yellow crystalline powder	444.6	112-120	32.06	insol	2.1	@ 32 ºC	@ 30.4 °C	35 mg/l ll 1400 ul	207	232
SULPHURYL CHLORIDE 7791-25-5	colourless, mobile liquid	69.3	-54.1	134.98		1.6674	4.7	@17.8 °C
THIONYL CHLORIDE 7719-09-7	colourless to pale yellow or reddish liquid; colourless to pale yellow, fuming, refractive liquid	76	-104.5	118.98		1.638	4.1	@ 26 °C

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:19

Sulphur Compounds, Organic: Chemical Identification

Chemical Formula	Chemical	Synonyms UN Code	CAS-Number
86884	ANTU	a-Naphthyl thiourea; 1-Naphthalenylthiourea; 1-Naphthyl thiourea; N-(1-Naphthyl)-2-thiourea; 1-(1-Naphthyl)-2-thiourea UN1651	86-88-4
98099	BENZENESULPHONYL CHLORIDE	Benzenesulphonic chloride UN2225	98-09-9
531862	BENZIDINE SULPHATE	(1,1'-Biphenyl)-4,4'-diamine, sulphate (1:1)	531-86-2
109795	n-BUTYLMERCAPTAN	n-Butanethiol; Butylmercaptan UN2347	109-79-5
75661	tert-BUTYLMERCAPTAN	tert-Butanethiol; 2-Methyl-2-propanethiol	75-66-1
463581	CARBONYL SULPHIDE		463-58-1
1569693	CYCLOHEXYL-1-MERCAPTAN	Cyclohexanethiol UN3054	1569-69-3
143102	DECYLMERCAPTAN	1-Decanethiol; n-Decylmercaptan; 1-Mercaptodecane	143-10-2
64675	DIETHYLSULPHATE	Diethyl sulphate; DS; Ethyl sulphate; Sulfuric acid, diethyl ester UN1594	64-67-5
77781	DIMETHYLSULPHATE	Dimethyl monosulphate UN1595	77-78-1
112550	DODECYLMERCAPTAN	1-Dodecanethiol; 1-Dodecylmercaptan; Laurylmercaptan; Pennfloat M; Pennfloat S	112-55-0
75081	ETHYLMERCAPTAN	Ethanethiol; Ethyl sulfhydrate; Ethyl thioalcohol; Thioethanol; Thioethyl alcohol UN2363	75-08-1
1639094	n-HEPTYLMERCAPTAN	1-Heptanethiol	1639-09-4
2917262	HEXANETHIOL	Cetylmercaptan; Hexadecanethiol-1; n-Hexadecanethiol; Hexadecylmercaptan	2917-26-2
111319	n-HEXYLMERCAPTAN	1-Hexanethiol	111-31-9
151213	LAURYL SODIUM SULPHATE	Monododecyl sodium sulphate; Sodium dodecyl sulphate; Sodium n-dodecyl sulphate; Sodium dodecyl sulphate; Sodium monolauryl sulphate	151-21-3
60242	2-MERCAPTOETHANOL	1-Ethanol-2-thiol; Ethylene glycol, monothio-; 2-hydroxy-1-ethanethiol; 2-Hydroxyethylmercaptan; Mercaptoethanol; Monothioethyleneglycol; 2-Thioethanol; Thioglycol; Thiomonoglycol UN2966	60-24-2
59518	D,L-METHIONINE	Acimetion; Banthionine; Cynaron; Dyprin; Lobamine; Meonine; Methionine; Metione; Mertionin; Neston	59-51-8
74931	METHYLMERCAPTAN	Methylmercaptan; Methanethiol; Thiomethanol UN1064	74-93-1
67685	METHYL-SULFOXIDE	Dimethyl sulfoxide; Dimethyl sulphoxide; Dimexide; Methane, sulfinylbis-; Methylsulfinylmethane	67-68-5
75183	METHYL-SULPHIDE	Dimethyl sulphide; Dimethyl sulphide; Methyl sulphide; Methylthiomethane; 2-Thiapropane; 2-Thiopropane UN1164	75-18-3
2885009	1-OCTADECANEDIOL	1-Mercaptooctadene; Octadecylmercaptan; Stearylmercaptan	2885-00-9
111886	1-OCTANETHIOL	1-Mercaptooctane; n-Octylmercaptan; Octylthiol; 1-Octylthiol	111-88-6
110667	1-PENTANETHIOL	Amyl hydrosulphide; Amylmercaptan; n-Amylmercaptan; Amyl sulfhydrate; Amyl thioalcohol; Pentylmercaptan	110-66-7
594423	PERCHLOROMETHYLMERCAPTAN	PCM; Trichloromethane sulfenyl chloride; Trichloromethanesulphenyl chloride; Trichloromethylsulfenyl chloride; Trichloromethylsulphenyl chloride UN1670	594-42-3
108985	PHENYLMERCAPTAN	Benzenethiol; Thiophenol UN2337	108-98-5
107039	PROPANETHIOL		107-03-9
25155300	SODIUM DODECYLBENZENESULFONATE		25155-30-0
540727	SODIUM ISOTHIOCYANATE	Sodium rhodanate; Sodium rhodanide; Sodium sulfocyanate; Sodium sulfocyanide; Sodium thiocyanate; Sodium thiocyanide; Thiocyanate sodium	540-72-7
62555	THIOACETAMIDE	Acetothioamide; Ethanethioamide; Thioacetimidic acid	62-55-5
507095	THIOACETIC ACID	Acetylmercaptan; Ethanethioic acid; Ethanethiolic acid; Methanecarbothiolic acid; Thiacetic acid; Thiolacetic acid; Thionoacetic acid UN2436	507-09-5
68111	THIOGLYCOLIC ACID	Glycolic acid, 2-thio-; Mercaptoacetate; Mercaptoacetic acid; 2-Mercaptoacetic acid; 2-Thioglycolic acid; Thiovanic acid UN1940	68-11-1
111488	2,2'-THIODIETHANOL	Bis(b-hydroxyethyl)sulfide; Bis(2-hydroxyethyl)sulfide; Bis(b-hydroxyethyl sulfide; Sulfide, bis(2-hydroxyethyl); Thiodiethylene glycol; Thiodiglycol; b-thiodiglycol	111-48-8
62566	THIOUREA	Isothiourea; Pseudothiourea; Thiocarbamide; Thiocarbonic acid diamide; Beta-thiopseudourea; 2-thiopseudourea; 2-Thiourea; THU	62-56-6
137268	THIRAM	Bis((dimethylamino)carbonothioyl) disulphide; Tetramethyldiurane sulphite; Tetramethylenethiuram disulphide; Tetramethylthioperoxydicarbonic diamide; Tetramethylthiuram; Tetramethylthiuram bisulphide; Tetramethylthiuram disulphide	137-26-8

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:21

Sulphur Compounds, Organic: Health Hazards

Chemical Name CAS-Number	ICSC Short-Term Exposure	ICSC Long-Term Exposure	ICSC Routes of Exposure and Symptoms	US NIOSH Target Organs & Routes of Entry	US NIOSH Symptoms
n-BUTYLMERCAPTAN 109-79-5	eyes; skin; resp tract; CNS; thyroid		Inhalation: weakness, confusion, cough, dizziness, headache, nausea, vomiting, shortness of breath Skin: redness, pain Eyes: redness, pain Ingestion: see inhalation	Resp sys; CNS; liver; kidneys; eyes; skin Inh; ing; con	Irrit eyes, skin; musc weak, mal, sweat, nau, vomit, head, conf; in animals: narco, inco, weak; cyan, pulm irrit; liver, kidney damage
tert-BUTYLMERCAPTAN 75-66-1	eyes; skin; resp tract; CNS	skin	Inhalation: cough, dizziness, headache, nausea, vomiting Skin: redness Eyes: redness
CYCLOHEXYLMERCAPTAN 1569-69-3	eyes; skin; resp tract; CNS	skin	Inhalation: cough, dizziness, headache, nausea, unconsciousness, vomiting, weakness Skin: redness Eyes: redness	Eyes; skin; resp sys; CNS Inh; abs; ing; con	Irrit eyes, skin, resp sys; head, dizz, weak, nau, vomit, convuls; cough, wheez, laryngitis, dysp
DECYLMERCAPTAN 143-10-2	eyes; skin; resp tract; CNS	skin	Inhalation: confusion, dizziness, headache, nausea, unconsciousness, weakness Skin: redness Eyes: redness	Eyes; skin; resp sys Inh; abs; ing; con	Irrit eyes, skin, resp sys; conf, dizz, head, drow, nau, vomit, weak, convuls
DODECYLMERCAPTAN 112-55-0	eyes; skin; resp tract; CNS	skin	Inhalation: confusion, cough, dizziness, headache, nausea, shortness of breath, sore throat, unconsciousness, weakness Skin: redness Eyes: redness, pain Ingestion: abdominal pain, dullness, headache, nausea, unconsciousness	Eyes; skin; resp sys; CNS; blood; Inh; con	Irrit eyes, skin, resp sys; cough; dysp, weak, conf, cyan; abdom pain, nau; skin sens
ETHYLMERCAPTAN 75-08-1			Inhalation: drowsiness, nausea, unconsciousness, weakness, tremors Skin: redness Eyes: redness, pain	Resp sys; liver; kidneys; eyes; blood Inh; con	Irrit muc memb; head, nau; in animals: inco, weak; liver, kidney damage; cyan; narco
HEXANETHIOL 2917-26-2	eyes; skin; resp tract; CNS	skin	Inhalation: dizziness, headache, nausea, sore throat, unconsciousness, weakness Skin: redness Eyes: redness	Eyes; skin; resp sys; CNS; blood Inh; abs; ing; con	Irrit eys, skin, resp sys; head, dizz, weak, cyan, nau, convuls
METHYLMERCAPTAN 74-93-1	eyes; skin; resp tract; lungs; CNS; blood; skin		Inhalation: cough, irritant, headache, nausea, shortness of breath, sore throat, unconsciousness Skin: redness, irritant, pain, on contact with liquid: frostbite Eyes: redness, irritant, pain	Resp sys; CNS; eyes; skin; blood Inh; con (liq)	Irrit eyes, skin, resp sys; narco; cyan; convuls; liq: frostbite
1-OCTADECANETHIOL 2885-00-9				Eyes; skin; resp sys; CNS; bloodInh; abs; ing; con	Irrit eyes, skin, resp sys; head; dizz; weak; cyan; nau; convuls
1-OCTANETHIOL 111-88-6				Eyes; skin; resp sys; blood; CNSInh; ing; con	Irrit eyes, skin, nose, throat; weak; cyan; incr respiration; nau; drow; head; vomit
PERCHLOROMETHYLMERCAPTAN 594-42-3	eyes; skin; resp tract; lungs	skin; lungs		Eyes; resp sys; liver; kidneys; skin Inh; abs; ing; con	Irrit eyes, skin, nose, throat; lac; cough, dysp, deep breath pain, coarse rales; vomit; pallor, tacar; acidosis; anuria; liver, kidney damage
PHENYLMERCAPTAN 108-98-5	eyes; skin; resp tract; CNS	skin	Inhalation: cough, headache, laboured breathing Skin: redness, pain Eyes: redness, pain Ingestion: nausea, sore throat	Eyes; skin; resp sys; CNS; kidneys; liver; spleen Inh; abs; ing; con	Irrit eyes, skin, resp sys; derm; cyan; cough, wheez, dysp, pulm edema, pneuitis; head, dizz, CNS depres; nau, vomit; kidney, liver, spleen damage
PROPANETHIOL 107-03-9				Eyes; skin; resp sys; CNS; blood; liver; kidneysInh; ing; con	Irrit eyes, skin, nose, throat, resp sys; head, nau, dizz, cyan; in animals: liver, kidney damage
SODIUM DODECYLBENZENESULFONATE 25155-30-0	eyes; skin; resp tract	skin	Inhalation: cough, laboured breathing Skin: redness Eyes: redness, pain Ingestion: diarrhoea, vomiting
THIOACETAMIDE 62-55-5	eyes; skin; resp tract		Inhalation: cough, laboured breathing, sore throat Skin: redness Eyes: redness, pain, blurred vision Ingestion: burning sensation, sore throat
THIOACETIC ACID 507-09-5	eyes; skin; resp tract; lungs	kidneys	Inhalation: cough, laboured breathing, nausea, sore throat, symptoms may be delayed Skin: burning sensation, pain Eyes: redness, pain, severe deep burns Ingestion: abdominal cramps, burning sensation

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:22

Sulphur Compounds, Organic: Physical & Chemical Hazards

Chemical Name CAS-Number	Physical	Chemical	UN Class or Division / Subsidiary Risks
ANTU 86-88-4		The substance decomposes on heating producing toxic fumes including nitrogen oxides and sulphur oxides • Reacts with strong oxidants causing fire and explosion hazard	6.1
BENZENESULPHONYL CHLORIDE 98-09-9			8
n-BUTYLMERCAPTAN 109-79-5	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on burning or heating, producing highly toxic fumes (sulphur dioxide) • Reacts with acids, bases, alkali metals, and strong oxidants	3
tert-BUTYLMERCAPTAN 75-66-1	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on burning producing highly toxic gases including sulphur oxides • Reacts with strong acids, strong bases, alkali metals, strong reducing agents, strong oxidants
CETYLMERCAPTAN 2917-26-2		The substance decomposes on burning producing highly toxic gases including sulphur oxides • Reacts violently with strong oxidants, acids, reducing agents, alkali metals
CYCLOHEXYLMERCAPTAN 1569-69-3		The substance decomposes on burning producing highly toxic gases including sulphur dioxide • Reacts with strong oxidants, reducing agents, and alkali metals	3
DECYLMERCAPTAN 143-10-2		The substance decomposes on burning producing highly toxic gases including sulphur dioxide • Reacts with strong oxidants and strong bases
DIETHYLSULPHATE 64-67-5		The substance decomposes on heating producing flammable and toxic fumes • The substance is a strong oxidant and reacts with combustible and reducing materials • The substance is a strong reducing agent and reacts with oxidants • The solution in water is a strong acid, it reacts violently with bases and is corrosive	6.1
DIETHYLSULPHIDE 352-93-2			3
DIMETHYLSULPHATE 77-78-1			6.1/ 8
DIMETHYLSULPHIDE 75-18-3	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on heating and on burning producing toxic and corrosive fumes (hydrogen sulphide and sulphur oxides) • Reacts violently with strong oxidants causing fire and explosion hazard	3
DIMETHYLSULPHOXIDE 67-68-5	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on heating above 150 °C or on burning producing toxic fumes • Reacts violently with strong oxidants such as perchlorates
DODECYLMERCAPTAN 112-55-0		The substance decomposes on burning producing highly toxic gases including sulphur dioxide • Reacts violently with strong oxidants and alkali metals
ETHYLMERCAPTAN 75-08-1	The vapour is heavier than air and may travel along the ground; distant ignition possible	On combustion, forms carbon monoxide, sulphur oxides and hydrogen sulphide • The substance is a weak acid • Reacts with oxidants causing fire and explosion hazard • Reacts vigourously with strong acids and bases causing toxic hazard	3
LAURYL SODIUM SULPHATE 151-21-3		On combustion, forms toxic gases • Gives off toxic fumes in a fire
MERCAPTOACETIC ACID 68-11-1			8
2-MERCAPTOETHANOL 60-24-2			8
METHANESULPHONYL CHLORIDE 124-63-0			6.1/ 8
D,L-METHIONINE 59-51-8		The substance decomposes on heating producing sulphur oxides, nitrous oxides • Reacts with strong oxidants
METHYLMERCAPTAN 74-93-1	The gas is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on heating and on burning producing toxic sulphur oxides • Reacts violently with strong oxidants • Reacts with acids to form flammable and toxic gas (hydrogen sulphide)	2.3/ 2.1
1-PENTANETHIOL 110-66-7			3
PERCHLOROMETHYLMERCAPTAN 594-42-3			6.1
PHENYLMERCAPTAN 108-98-5		The substance decomposes on heating producing toxic fumes (sulphur oxides and carbon monoxide) • Reacts with acids to form toxic fumes (sulphur oxides)	6.1/ 3
PROPANETHIOL 107-03-9			3
SODIUM DODECYLBENZENESULPHONATE 25155-30-0		The substance decomposes on heating and on burning producing toxic and irritating fumes (sulphur oxides) • Reacts with acids or acid fumes producing toxic and irritating fumes (sulphur oxides)
SODIUM THIOCYANATE 540-72-7		The substance decomposes on heating and under influence of light producing toxic fumes of sulphur oxides, nitrogen oxides and cyanides • Reacts violently with acids, strong bases and strong oxidants
THIOACETAMIDE 62-55-5		The substance decomposes on burning producing toxic fumes
THIOACETIC ACID 507-09-5	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on burning producing toxic and corrosive fumes (sulphur oxides) • The substance is a medium strong acid and is corrosive • Reacts violently with strong oxidants causing fire and explosion hazard • Reacts slowly with water forming acetic acid and hydrogen sulfide
THIOUREA 62-56-6		The substance decomposes on heating producing toxic fumes of nitrogen oxides and sulphur oxides • acts with sufphydryl-oxidizing agents and forms complexes and adducts with metallic salts and many organic compounds including proteins and certain hydrocarbons • Reacts violently with acrolein, strong acids and strong oxidants
THIRAM 137-26-8	Dust explosion possible if in powder or granular form, mixed with air	The substance decomposes on heating and on burning producing toxic fumes (nitrogen, sulphur oxides) • Reacts with strong oxidants, acids and oxidizable materials	6.1

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:24

Sulphur Compounds, Organic: Physical & Chemical Properties

Chemical Name CAS-Number	Colour/Form	Boiling Point (°C)	Melting Point (°C)	Molecular Weight	Solubility in Water	Relative Density (water=1)	Relative Vapour Density (air=1)	Vapour Pressure/ (Kpa)	Inflam. Limits	Flash Point (°C)	Auto Ignition Point (°C)
n-BUTYLMERCAPTAN 109-79-5	colourless liquid	98.4	-115.7	90.2	sl sol	0.8337	3.1	4.0		2 cc	<225
tert-BUTYLMERCAPTAN 75-66-1	mobile liquid; colourless liquid	64	-0.5	90.2	insol	0.8002	3.1	19.0		-26 cc
CETYLMERCAPTAN 2917-26-2	liquid or solid	184	18		insol	0.84	8.9	10 Pa		135
CYCLOHEXYLMERCAPTAN 1569-69-3	liquid	158	-118	116.2	insol	0.9782	4.00	1.3		43 cc
DECYLMERCAPTAN 143-10-2	colourless liquid	241	-26	174.3	insol	0.84	6.0	<10 Pa
DODECYLMERCAPTAN 112-55-0	water-white to pale yellow liquid; oily colourless liquid	@ 15 mm Hg	-7	202.4	insol	0.8450	7.0	@ 25 °C		1278 oc	230
ETHYLMERCAPTAN 75-08-1	colourless liquid	35	-144.4	62.13	sl sol	0.83907	2.14	589	2.8 ll 18.0 ul	-483	299
n-HEPTYLMERCAPTAN 1639-09-4		177	-43	132.26	insol	0.8427
n-HEXYLMERCAPTAN 111-31-9		151	-81	118.23	insol	0.8424
2-MERCAPTOETHANOL 60-24-2	water-white mobile liquid	@ 742 mm Hg		78.13	sol	1.1143	2.7	1.00 mm Hg
METHYLMERCAPTAN 74-93-1	water-white liquid when below boiling point, or colourless gas	5.9	-123	48.1	sl sol	0.8665	1.66	@ 26.1 °C	3.9 ll 21.8 ul	-18
METHANESULFONYL CHLORIDE 124-63-0	pale yellow liquid	@ 18 mm Hg	-32	114.55	insol	1.4573
OCTADECANETHIOL 2885-00-9	solid	205-209	25			0.8420
n-OCTANETHIOL 111-88-6	water-white liquid	199.1	-49.2	146.30		0.8433				46
1-PENTANETHIOL 110-66-7	liquid	@ 460 mm Hg	-75.7	104.21	insol	0.8421	3.59	@25 °C		18 oc
PERCHLOROMETHYLMERCAPTAN 594-42-3	oily, yellow liquid; yellow to orange-red	147.5		185.88	insol	1.6947	6.414	3 mm Hg
PHENYLMERCAPTAN 108-98-5	water-white liquid; prism-like crystals from petroleum ether	168	-14.8	110.17	insol	1.0766	3.8	@ 18 °C		<55
PROPANETHIOL 107-03-9	colourless, mobile liquid	67-68	-113.3	76.17	sl sol	0.8411 g/ml		@ 25 °C		-20
SODIUM DODECYLBENZENESULFONATE 25155-30-0	white to light yellow flakes, granules, or powder		>300		sol	1.0 for 60% slurry
THIOACETAMIDE 62-55-5	crystals from benzene; colourless leaflets; crystals from alc, plates from ether		116	75.1	v sol
THIOACETIC ACID 507-09-5	yellow liquid	93	<-17	76.1	sl sol	1.064	2.62			18-21
2,2'-THIODIETHANOL 111-48-8		164-166	-10	122.2		1.1819
THIOGLYCOLIC ACID 68-11-1	colourless liquid	@ 20 mm Hg	-16.5	92.1	misc	1.3253		@ 18 °C

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:30

Silicon & Organosilicon Compounds: Chemical Identification

Chemical Formula	Chemical	Synonyms UN Code	CAS-Number
1344952	CALCIUM SILICATE	Calcium hydrosilicate; Calcium monosilicate; Calcium polysilicate; Calcium silicate; Calflo E; Calsil; CS lafarge; Florite R; Marimet 45; Microcal 160; Promaxon P60; Silene WF; Silmos t; Solex; Stabinex NW 7PS; Starlex l; SW 400; Toyofine A	1344-95-2
78104	ETHYL SILICATE	Ethyl orthosilicate; Ethyl silicate; Extrema; Silane, tetraethoxy-; TEOS; Tetraethoxysilane; Tetraethyl orthosilicate; Tetraethyl silicate UN1292	78-10-4
75547	METHYL DICHLOROSILANE	Dichloromethylsilane UN1242	75-54-7
681845	METHYL SILICATE	Methyl orthosilicate; Methyl silicate; Silicic acid, methyl ester of ortho-; Silicic acid, tetramethyl ester; Tetramethoxysilane; Tetramethyl silicate UN2606	681-84-5
75796	METHYL TRICHLOROSILANE	Methylsilicochloroform; Methylsilyl trichloride; Trichloromethylsilane UN1250	75-79-6
9016006	POLYDIMETHYLSILOXANE	Af 72; Af 75; Dimethicone 350; Dow Corning 346; Geon; Good-rite; Gum; Hycar; Latex; Methyl silicone; Polymethylsiloxane	9016-00-6
4109960	SILANE, DICHLORO-		4109-96-0
6834920	SILICIC ACID, DISODIUM SALT	B-W; Crystamet; Disodium metasilicate; Disodium monosilicate; Metso 20; Metso beads, drymet; Silicic acid, disodium salt ; Sodium silicate; Water glass	6834-92-0
Si	SILICON		7440-21-3
SiC	SILICON CARBIDE	Annanox CK; Betarundum; Ultrafine; Carbofrax M; Carbolon; Carbon silicide; Crystar; Crystolon 37; Crystolon 39; Densic c 500	409-21-2
SiO	SILICON MONOXIDE		10477-28-6
7803625	SILICON TETRAHYDRIDE	Flots 100SCO; Monosilane; Silane; Silicane UN2203	7803-62-5
7783611	SILICON TETRAFLUORIDE	Perfluorosilane; Silane, tetrafluoro-; Tetrafluorosilane UN1859	7783-61-1
10026047	TETRACHLOROSILANE	Extrema; Silicon chloride; Silicio(tetracloruro di); Silicon tetrachloride UN1818	10026-04-7
10025782	TRICHLOROSILANE	Silicochloroform; Trichloromonosilane UN1295	10025-78-2
75774	TRIMETHYL CHLOROSILANE	Chlorotrimethylsilane; Silane, trimethylchloro-; Silicane, chlorotrimethyl-; Tl 1163; Trimethylsilyl chloride UN1298	75-77-4

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Published in 104. Guide to Chemicals

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Friday, 12 August 2011 00:32

Silicon & Organosilicon Compounds: Health Hazards

Chemical Name CAS-Number	ICSC Short-Term Exposure	ICSC Long-Term Exposure	ICSC Routes of Exposure and Symptoms	US NIOSH Target Organs & Routes of Entry	US NIOSH Symptoms
ETHYL SILICATE 78-10-4				Resp sys; liver; kidneys; blood; skin; eyes Inh; ing; con	Irrit eyes, nose; in animals: lac, dysp, pulm edema; tremor, narco; liver, kidney damage; anemia
METHYL DICHLOROSILANE 75-54-7	eyes; skin; resp tract; lungs
METHYL SILICATE 681-84-5	resp tract; eyes; lungs	kidneys; liver	Inhalation: burning sensation, cough, shortness of breath, sore throat, symptoms may be delayed Eyes: redness, pain, loss of vision	Eyes; resp sys; kidneys Inh; ing; con (vapliq)	Irrit eyes, corn damage (following even short term exposure to vapor); lung, kidney inj; pulm edema
METHYL TRICHLOROSILANE 75-79-6	eyes; skin; resp tract; lungs		Inhalation: corrosive, burning sensation, cough, shortness of breath, unconsciousness, symptoms may be delayed Skin: corrosive, redness, skin burns, pain, blisters Eyes: corrosive, redness, pain, loss of vision, severe deep burns
POLYDIMETHYLSILOXANE 9016-00-6	eyes		Eyes: redness, pain
SILANE, DICHLORO- 4109-96-0	eyes; skin; resp tract; lungs	lungs	Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat Skin: redness, skin burns, burning sensation, pain, blisters Eyes: redness, pain, loss of vision
SILICON TETRAHYDRIDE 7803-62-5	eyes; resp tract; lungs	lungs	Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat, symptoms may be delayed Eyes: redness, pain Ingestion: weakness	Eyes; skin; resp sys; CNS Inh	Irrit eyes, skin, muc memb; nau, head
SILICIC ACID, DISODIUM SALT 6834-92-0	eyes; skin; resp tract; lungs	skin	Inhalation: burning sensation, cough, shortness of breath Skin: redness, serious skin burns, pain, blisters Eyes: redness, pain, blurred vision, severe deep burns Ingestion: burning sensation, diarrhoea, shock or collapse, vomiting, collapse
SILICON TETRAFLUORIDE 7783-61-1	eyes; skin; resp tract; lungs		Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat Skin: redness, skin burns, pain, blisters Eyes: redness, pain, loss of vision, severe deep burns
TETRACHLOROSILANE 10026-04-7	eyes; lungs		Inhalation: burning sensation, cough, laboured breathing, shortness of breath, sore throat Skin: redness, skin burns, pain, blisters Eyes: redness, pain, loss of vision, severe deep burns
TRICHLOROSILANE 10025-78-2	eyes; skin; resp tract; lungs	lungs	Inhalation: burning sensation of the chest, cough, laboured breathing, shortness of breath, sore throat Skin: redness, skin burns, burning sensation, pain, blisters Eyes: redness, pain, loss of vision
TRIMETHYLHLOROSILANE 75-77-4	eyes; skin; resp tract; lungs	skin	Ingestion: Inhalation: burning sensation, cough, laboured breathing Skin: redness, pain, blisters Eyes: redness, pain, severe deep burnsabdominal pain, burning sensation, weakness

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:34

Silicon & Organosilicon Compounds: Physical & Chemical Hazards

Chemical Name CAS-Number	Physical	Chemical	UN Class or Division / Subsidiary Risks
ETHYL SILICATE 78-10-4			3
METHYL DICHLOROSILANE 75-54-7			4.3/ 3/ 8
METHYL TRICHLOROSILANE 75-79-6	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on heating producing hydrogen chloride • Reacts violently with strong oxidants • Reacts violently with water and moisture producing hydrogen chloride, causing fire and explosion hazard • Attacks metals like aluminium and magnesium	3/ 8
POLYDIMETHYLSILOXANE 9016-00-6		The substance decomposes on heating (>150 ºC) producing formaldehyde in small amounts
SILANE, DICHLORO- 4109-96-0	The gas is heavier than air	Reacts violently with water • On contact with air it emits hydrogen chloride
SILICIC ACID, DISODIUM SALT 6834-92-0		The substance is a strong base, it reacts violently with acid and is corrosive in moist air to metals like zinc, aluminium, tin and lead forming a flammable/explosive gas (hydrogen)
SILICON TETRAHYDRIDE 7803-62-5	The gas is heavier than air	The substance may spontaneously ignite on contact with air room temperature
SILICON TETRAFLUORIDE 7783-61-1	The gas is heavier than air	Reacts violently with water • On contact with air it emits hydrogen fluoride	2.3/ 8
SILICON 7440-21-3			4.1
TETRACHLOROSILANE 10026-04-7	The vapour is heavier than air	Reacts violently with water • On contact with air it emits hydrogen chloride and silicic acid
TRICHLOROSILANE 10025-78-2	The vapour is heavier than air and may travel along the ground; distant ignition possible	Reacts violently with water • On contact with air it emits hydrogen chloride • Attacks many metals in presence of water	4.3/ 3/ 8
TRIMETHYLCHLOROSILANE 75-77-4	The vapour is heavier than air and may travel along the ground; distant ignition possible	The substance decomposes on heating producing toxic and corrosive fumes (hydrogen chloride, phosgene) • Reacts violently with water, ketones, alcohol, amines and many other substances, causing explosion hazard • On contact with air it emits corrosive fumes of hydrogen chloride	3/ 8

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:38

Silicon & Organosilicon Compounds: Physical & Chemical Properties

Chemical Name CAS-Number	Colour/Form	Boiling Point (°C)	Melting Point (°C)	Molecular Weight	Solubility in Water	Relative Density (water=1)	Relative Vapour Density (air=1)	Vapour Pressure/ (Kpa)	Inflam. Limits	Flash Point (°C)	Auto Ignition Point (°C)
CALCIUM SILICATE 1344-95-2	white powder				insol	2.9
ETHYL SILICATE 78-10-4	colourless liquid	168.8	-82.5	208.30	insol	0.933	7.22	1.0 mm Hg	1.3 ll 23 ul	52 oc
METHYL DICHLOROSILANE 75-54-7	colourless liquid	41	-93	115.04	sl sol	@ 27 °C	3.97	46	6.0 ll 55 ul	-9 cc	316
METHYL SILICATE 681-84-5	colourless liquid	121-122	-2	152.25	reacts	1.032	5.3	2.2
METHYL TRICHLOROSILANE 75-79-6	colourless liquid	66.4	-90	149.48	reacts	@ 25 °C	5.17	17.9	5.1 ll ? ul	8	404
POLYDIMETHYLSILOXANE 9016-00-6	clear fluids available in wide range of viscosities				insol	0.97				>200
SILANE, DICHLORO- 4109-96-0	compressed, liquified gas	8.2	-122.0	101.01		1.22	3.484		4.1 ll 99 ul	-307	100 58
SILICIC ACID, DISODIUM SALT 6834-92-0	colourless monoclinic crystals; usually obtained as a glass; also orthorhombic crystals; dustless white granules		1089	122.07	sol	2.614
SILICON CARBIDE 409-21-2	exceedingly hard, green to bluish-black, iridescent, sharp crystals; hexagonal or cubic		2600	40.07	insol	3.23
SILICON MONOXIDE 10477-28-6	amorphous black solid					2.15-2.18
SILICON TETRAHYDRIDE 7803-62-5	gas; colourless	-112	-185	32.13	slowly decomposes	@ 19 °C	1.114		1.37	-22
SILICON TETRAFLUORIDE 7783-61-1	colourless gas	-86	-90.2	104.06		@ -80 °C (liquid)	3.57
SILICON 7440-21-3	black to gray, lustrous, needle-like crystals or octahedral platelets (cubic system); amorphous form is dark brown powder	2355	1410	28.0855	insol		@ 25 °C/4 °C
SODIUM SILICATE 1344-09-8	colourless to white or grayish-white, crystal-like pieces or lumps; lumps of greenish glass; white powders; liquids cloudy or clear				sl sol
TETRACHLOROSILANE 10026-04-7	colourless, clear, mobile liquid	59	-70	169.89		@ 0 °C/4 °C	5.9	@ 5.4 °C
TRICHLOROSILANE 10025-78-2	colourless liquid	31.8	-126.5	135.47		1.3417	4.7	@ -16.4 °C	1.2 ll 90.5 ul	-14 oc	93-104
TRIMETHYLCHLOROSILANE 75-77-4	colourless liquid	57	-57.7	108.66	reacts	@ 25 °C	3.75	26.7	1.8 ll 6 ul	-27

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Published in 104. Guide to Chemicals

Friday, 12 August 2011 00:46

Phthalates: Chemical Identification

Chemical Formula	Chemical	Synonyms UN Code	CAS-Number
131179	DIALLYL PHTHALATE	1,2-Benzenedicarboxylic acid, di-2-propenyl ester ; Phthalic acid, diallyl ester; o-Phthalic acid, diallyl ester	131-17-9
84742	DIBUTYL PHTHALATE	o-Benzenedicarboxylic acid, dibutyl ester; Benzene-o-dicarboxylic acid di-n-butyl ester; DBP; Dibutyl 1,2-benzenedicarboxylate; Dibutyl phthalate; Di-n-butyl phthalate; n-Butylphthalate; Polycizer dbp	84-74-2
84617	DICYCLOHEXYL PHTHALATE	1,2-Benzenedicarboxylic acid, dicyclohexyl ester; Phthalic acid, dicyclohexyl ester	84-61-7
84662	DIETHYL PHTHALATE	1,2-Benzenedicarboxylic acid, diethyl ester; Ethyl phthalate; Neantine; Palatinol a; Phthalol	84-66-2
3648213	DIHEPTYL PHTHALATE	Di-n-heptyl phthalate; Heptyl phthalate	3648-21-3
26761400	DIISODECYL PHTHALATE	1,2-Benzenedicarboxylic acid, bis(isodecyl)phthalate; DIDP (plasticizer); Diisodecyl phthalate; Phthalic acid, diisodecyl ester	26761-40-0
131113	DIMETHYL PHTHALATE	1,2-Benzenedicarboxylic acid, dimethyl ester; Dimethyl-1,2-benzenedicarboxylate; DMP; Methyl phthalate; Phthalic acid methyl ester	131-11-3
117817	DI-sec-OCTYL PHTHALATE	1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester; Bis(2-ethylhexyl)-1,2-benzenedicarboxylate; Bis(2-ethylhexyl)phthalate; Di(2-ethylhexyl)orthophthalate	117-81-7
84695	PHTHALIC ACID, DIISOBUTYL ESTER	DIBP; Diisobutyl phthalate; Hexaplas M; 1B; Palatinol IC	84-69-5
27554263	PHTHALIC ACID, DIISOOCTYL ESTER	1,2-Benzenedicarboxylic acid, diisooctyl ester; Diisooctyl phthalate; Isooctyl phthalate; Phthalic acid, bis(6-methylheptyl)ester	27554-26-3
27253265	PHTHALIC ACID, DIISOTRIDECYL ESTER	1,2-Benzenedicarboxylic acid, diisotridecyl ester; Diisotridecyl phthalate	27253-26-5
636099	TEREPHTHALIC ACID, DIETHYL ESTER	1,4-Benzenedicarboxylic acid, diethyl ester; Diethyl terephthalate	636-09-9
120616	TEREPHTHALIC ACID, DIMETHYL ESTER	1,4-Benzenedicarboxylic acid, dimethyl 1,4-benzenedicarboxylate; Dimethyl p-phthalate; Dimethyl terephthalate; DMT; Methyl 4-carbomethoxybenzoate; Terephthalic acid methyl ester	120-61-6

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