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Friday, 05 August 2011 00:12

Acids and Anhydrides,Organic: Physical & Chemical Properties

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Chemical Name
CAS-Number

Colour/Form

Boiling Point (ºC)

Melting Point (ºC)

Molecular Weight

Solubility in Water

Relative Density (water=1)

Relative Vapour Density (air=1)

Vapour Pressure/ (Kpa)

Inflam.
Limits

Flash Point (ºC)

Auto Ignition Point (ºC)

ACETIC ACID
64-19-7

rhombic crystals (<16.6 ºC melting point); colourless liquid (16.6 ºC melting point)

118

16.6

60.05

misc

1.0492

2.1

1.6

4 ll
16 ul

39 cc

426

ACETIC ANHYDRIDE
108-24-7

colourless, very mobile, strongly refractive liquid

139

-73

102.10

v sol

@ 15 ºC

3.5

0.5

2.9 ll
10.3 ul

49 cc

316

ACETYLSALICYLIC ACID
50-78-2

monoclinic tablets or needle-like crystals

135

180.15

sl sol

1.40

@ 25 ºC

ACRYLIC ACID
79-10-7

colourless liquid

141

14

72.06

misc

1.0511

2.5

0.413

2.9 ll
8 ul

54 oc

360

ADIPIC ACID
124-04-9

monoclinic prisms from ethyl acetate, water, or acetone and petroleum ether; fine white crystals or powder

337.5

152

146.14

sl sol

@ 25 ºC/4 ºC

5.04

@ 18.5 ºC

10 ll
15 mg/l ul

196 cc

422

L-ASCORBIC ACID
50-81-7

crystals (usually plates, sometimes needles, monoclinic system); white to slightly yellow crystals or powder

190-192

176.12

v sol

@ 25 ºC

BENZOIC ACID
65-85-0

monoclinic tablets, plates, leaflets; white scales or needle crystals

249.2

122.4

122.13

@ 20 ºC

@ 15 ºC/4 ºC

4.21

@ 96 ºC

121 cc

570

BUTYRIC ACID
107-92-6

oily liquid; colourless liquid

165.5

-7.9

88.10

misc

0.9577

3.0

0.43 mm Hg

2.0 ll
10.0 ul

72 cc

443

BUTYRYL CHLORIDE
141-75-3

colourless liquid

101-102

-89

106.55

slowly with decompo­sition

@ 20.6 ºC/4 ºC

< 21

n-CAPROIC ACID
142-62-1

oily liquid

205.8

-3.4

116.16

insol

0.929

4.01

0.024

1.3 ll
9.3 ul

102 oc

380

CHLORENDIC ACID
115-28-6

crystalline solid

388.84

CHLOROACETIC ACID
79-11-8

monoclinic prisms; colourless or white crystals; colourless to light-brownish crystals

189

(alpha) 63 ; (beta) 55-56 ; (gam­ma) 50

94.50

v sol

1.6

3.26

@ 43 ºC

8.0 ll
? ul

126

>500

o-CHLOROBENZOIC ACID
118-91-2

monoclinic prisms from water

sublimes

142

156.6

sol

1.544

@ 25 ºC

m-CHLOROBENZOIC ACID
535-80-8

crystals; prisms from water

sublimes

158

156.6

v sol

@ 25 ºC/4 ºC

@ 25 ºC

p-CHLOROBENZOIC ACID
74-11-3

triclinic prisms from alcohol and ether; nearly white coarse powder

243

156.6

insol

@ 25 ºC

2-CHLOROPROPIONIC ACID
598-78-7

crystals

186

-12.1

108.53

misc

1.2585

CITRIC ACID
77-92-9

crystals/monoclinic holohedra/crystallize from hot concentrated aq soln; colourless, translucent crystals or white, granular to fine crystalline powder/ rhombic crystals from water with 1 mol of water of crystallization

decomp

153

192.12

v sol

1.665

0.28 ll
2.29 ul

CITRIC ACID HYDRATE
5949-29-1

crystals

decomp

100

sol

1.5

0.28 ll
2.29 ul

1010

CROTONIC ACID
3724-65-0

monoclinic needles or prisms (from water or petroleum ether); colourless needle-like crystals; white crystalline solid

185

71.5-71.7

86.09

v sol

@ 15 ºC/4 ºC; 0.964

2.97

0.024

88

396

DICHLOROACETIC ACID
79-43-6

colourless liquid

194

9.7

128.94

misc

1.56

4.45

0.019

2,4-DICHLOROPHENOXY­ACETIC ACID
94-75-7

white to yellow crystalline powder; yellow colour is phenolic impurities; colourless powder; white

@ 0.4 mm Hg

138

221.04

insol

1.6

7.6

@ 160 ºC

88 oc

2,4-DICHLOROPHENOXY­PROPIONIC ACID
120-36-5

colourless crystalline solid; white to tan, crystalline solid

117.5-118.1

235.07

1.42

ETHANEDIOIC ACID, DIHYDRATE
6153-56-6

colourless crystals

sublimes

102

10g/100 ml

1.7

3.1

2-ETHYLHEXANOIC ACID
149-57-5

colourless liquid

228

- 59

144.2

sol

@ 25 ºC/4 ºC

5.0

0.004

0.8 ll
6.0 ul

118 oc

310

FLUOROACETIC ACID
144-49-0

needles; colourless crystals

165

35.2

78.04

sol

@ 36 ºC

@ 25 ºC

FORMIC ACID
64-18-6

colourless liquid

101

8.4

46.00

misc

1.22

1.6

4.4

14 ll
34 ul

69

480-520

FUMARIC ACID
110-17-8

needles, monoclinic prisms or leaflets from water; colourless crystals; white crystalline powder

@ 1.7 mm Hg

300-302

116.07

sl sol

1.635

GALLIC ACID
149-91-7

prisms from water; needles from absolute methanol or chloroform

253

170.1

sl sol

@ 6 ºC/4 ºC

GLYCOLIC ACID
79-14-1

colourless crystals; rhombic needles from water; leaves from ethanol

100

80

76.05

sol

HEPTANOIC ACID
111-14-8

clear oily liquid

223.01

-7.5

130.2

sl sol

0.92

ISOBUTYRIC ACID
79-31-2

colourless liquid

152-155

-47

88.1

v sol

0.950

3.0

@ 14.7 ºC

ISOPHTHALIC ACID
121-91-5

needles

sublimes

347

166.13

sl sol

LACTIC ACID
598-82-3

colourless liquid or colourless crystals

16.8-18

90.08

v sol

>74

LAURIC ACID
143-07-7

colourless solid; white, crystalline powder

298.9

44.2

200.3

insol

0.883

@ 121.0 ºC

MALEIC ACID
110-16-7

monoclinic prisms from water; white crystals from water, alcohol & benzene; colourless crystals

135

138-139

116.07

@ 25 ºC

1.590

4.0

MALEIC ANHYDRIDE
108-31-6

orthorhombic needles from chloroform; commercial grades in fused form, as briquettes; colourless needles or white lumps or pellets; needles from chloroform or ether

202.0

52.8

98.06

sol

1.48

3.4

@ 25 ºC

1.4 ll
7.1 ul

102

475

MALONIC ACID
141-82-2

white crystals

decomp

132- 134

104.06

sol

1.63

METHACRYLIC ACID
79-41-4

liquid or colourless crystals; colourless liquid

163

16

86.09

sol

1.0153

2.97

@ 25 ºC

77 oc

2-METHYL-4-CHLOROPHENOACETIC ACID
94-74-6

light brown solid; plates from benzene or toluene; white crystalline solid (pure compd); colourless crystalline solid (pure)

120

200.6

sl sol

@ 25 ºC/15.5 ºC

6.9

0.0002 Pa

METHACRYLIC ACID, 2-DIMETHYLAMINO­ETHYL
2867-47-2

liquid

62-65

-30

157.22

sol

@ 25 ºC/5 ºC

5.4

739 oc

NONANOIC ACID
112-05-0

colourless, oily liquid at ordinary temp; crystallizes when cooled; yellowish oil

255

12.5

158.23

insol

0.9057

OLEIC ACID
112-80-1

colourless or nearly colourless liquid (above 5-7 ºC); yellowish, oily liquid; water-white liquid

@ 100 mm Hg

16.3

282.45

insol

@ 25 ºC

363

OXALIC ACID
144-62-7

anhyd oxalic acid, crystallized from glacial acetic acid is orthorhombic, crystals being pyramidal or elongated octahedra; transparent, colourless crystals or white powder

157

189.5

90.04

sol

@ 17 ºC /4 ºC

PALMITIC ACID
57-10-3

white crystalline scales; needles from alcohol

@ 15 mm Hg

63-64

256.5

insol

@ 62 ºC/4 ºC

@ 154 ºC

PHTHALIC ACID
88-99-3

crystals; plates from water

decomp

210-211

166.13

sl sol

1.59

5.73

168 oc

PHTHALIC ANHYDRIDE
85-44-9

white, lustrous needles; colourless or pale yellow solid flakes; colourless needles; monoclinic or rhombic prisms; white needles from alcohol and benzene

295

130.8

148.11

sl sol

1.527

5.1

0.27 Pa

1.7 ll
10.4. ul

570

PIVALIC ACID
75-98-9

coloured crystals

164

35.5

102.13

sl sol

@ 50 ºC

PROPIONIC ANHYDRIDE
123-62-6

colourless liquid

167

-45

130.2

decomposes

1.01

4.5

100

1.3 ll
9.5 ul

63

285

PROPIONIC ACID
79-09-4

colourless liquid; oily liquid

141

-20.8

74.09

misc

0.9930

2.56

0.386

2.9 ll
14.8 ul

544

955

SALICYLIC ACID
69-72-7

white, fine, needle-like crystals, or fluffy, white crystalline powder; needles in water; monoclinic prisms in alcohol

211

158

138.12

sl sol

1.443

4.8

0.114

1.1 ll
? ul

157

540

STEARIC ACID
57-11-4

monoclinic leaf from alcohol; white or slightly yellow, crystal masses or powder

@ 15 mm Hg

69

284.50

insol

0.9408

9.80

@ 173.7 ºC

196

395

SUCCINIC ACID
110-15-6

white minute monoclinic prisms; triclinic or monoclinic prisms

235

188

118.09

sl sol

@ 25 ºC/4 ºC

SULPHANILIC ACID
121-57-3

rhombic plates or monoclinic crystals from water

288

173.2

sl sol

@ 25 ºC/4 ºC

TARTARIC ACID
87-69-4

169

150.08

TEREPHTHALIC ACID
100-21-0

needles; white crystals or powder

402

166.13

insol

1.51

< 0.001

260

496

p-tert BUTYLBENZOIC ACID
98-73-7

needles from dilute alcohol

164.5-165.5

178.2

insol

p-TOLUENESULPHONIC ACID
104-15-4

monoclinic leaflets or prisms; colourless crystals

140

106-107

172.2

v sol

1.24

184 cc

TRICHLOROACETIC ACID
76-03-9

crystals; colourless; white solid

197.55

58

163.40

v sol

@ 25 C/4 ºC

@ 51.0 ºC

2,4,5-TRICHLORO­PHENOXYACETIC ACID
93-76-5

white solid; light tan solid

decomp

153

255.5

insol

1.80

< 0.01 mPa

TRIFLUOROACETIC ACID
76-05-1

colourless, fuming liquid

73

-15.2

114.02

sol

@ 25 ºC

TRIMELLITIC ANHYDRIDE
552-30-7

crystals; colourless solid

240-245

161-163.5

192.13

reacts

6.6

@ 25 ºC

1 ll
7 ul

VALERIC ACID
109-52-4

colourless liquid

186-187

-34.5

102.15

sol

0.939

3.5

0.020

96 oc

400

 

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Contents

Preface
Part I. The Body
Part II. Health Care
Part III. Management & Policy
Part IV. Tools and Approaches
Part V. Psychosocial and Organizational Factors
Part VI. General Hazards
Part VII. The Environment
Part VIII. Accidents and Safety Management
Part IX. Chemicals
Part X. Industries Based on Biological Resources
Part XI. Industries Based on Natural Resources
Part XII. Chemical Industries
Part XIII. Manufacturing Industries
Part XIV. Textile and Apparel Industries
Part XV. Transport Industries
Part XVI. Construction
Part XVII. Services and Trade
Part XVIII. Guides