Sunday, 07 August 2011 06:41

Heterocyclic Compounds: Physical & Chemical Properties

Rate this item
(15 votes)

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)

ACRIDINE
260-94-6

rhombohedral needles or prisms from alcohol; monoclinic, orthorhombic; small colourless needles; orthorhombic plates, needles from diluted alcohol; small, colourless or faintly yellow crystals

346

111

179.21

sl sol

1.005

@ 129 °C

N-AMINOETHYL­PIPERAZINE
140-31-8

liquid

220

-17.6

129.2

sol

0.9837

4.4

93 oc

2-AMINOPYRIDINE
504-29-0

white leaflets or large colourless crystals; white powder or crystals

211

58

94.11

misc

3.25

0.13

68 cc

BENZOGUANAMINE
91-76-9

crystals

227

187.20

0.6%

@ 25 °C/4 °C

1,2,3-BENZOTRIAZOLE
95-14-7

needles from benzene; white to light tan, crystalline powder

@ 15 mm Hg

98.5

119.12

sl sol

COUMARIN
91-64-5

rhomboid, pyramidal crystals from ether; orthorhombic, rectangular plates; white, crystalline solid

301.72

71

146.14

1 g/ 400 ml (cold)

0.935 at 20/4 °C

1 mm Hg at 106.0 °C

3,4,5,6-DIBENZO­CARBAZOLE
194-59-2

needles from ethanol

158

267.34

3,6-DICHLORO­PICOLINIC ACID
1702-17-6

white crystalline solid; colourless crystals

151-152

192.0

@ 25 °C

0.8

0.003 Pa

N-ETHYLMORPHOLINE
100-74-3

colourless liquid

138.5

-62.78

115.2

misc

0.8996

4.0

@ 20 °C

2-MERCAPTO­BENZOTHIAZOLE
149-30-4

pale, yellow monoclinic needles or leaflets; yellowish powder; needles from alc or dilute methanol; yellowish to tan crystalline powder

181

167.2

insol

1.42

2-MERCAPTO­BENZOTHIAZOLE ­DISULPHIDE
120-78-5

pale yellow needles from benzene; free-flowing powder

180

332.46

insol

1.50

1-METHYL-2-­PYRROLIDONE
872-50-4

colourless liquid

202

24

99.13

v sol

@ 25 °C/ 25 °C

3.4

@ 25 °C

0.99 ll
3.9 ul

91

270

N-METHYLMORPHOLINE
109-02-4

115-116

101.14

sol

0.9051

2-METHYLPYRIDINE
109-06-8

colourless liquid

129

-70

93.12

v sol

0.9443

3.2

1.2

1.4 ll
8.6 ul

39

535

3-METHYLPYRIDINE
108-99-6

colourless liquid

143-144

-18.3

93.12

misc

@ 15 °C/4 °C

3.2

@ 25 °C

1.3 ll
8.7 ul

38 cc

4-METHYLPYRIDINE
108-89-4

colourless liquid

145

3.6

93.12

misc

0.9548

3.2

@ 25 °C

1.3 ll
8.7 ul

57 oc

MORPHOLINE
110-91-8

colourless liquid; mobile liquid

128.9

-4.9

87.12

misc

1.0007

3

1.06

2.0 ll
11.2 ul

38 oc

310

NICOTINE
54-11-5

colourless to pale yellow, oily liquid; thick, water-white, oil turning brown

@ 745 mm Hg

-79

162.23

misc

1.0097

5.61

@ 62 °C

0.7 ll
4.0 ul

95

244

NICOTINE TARTRATE
65-31-6

white plates

90

462.46

sol

N-NITROSONOR­NICOTINE
16543-55-8

yellow oil

@ 0.2 mm Hg

47

177.23

@ 154 °C

PHENAZOPYRIDINE
94-78-0

brownish-yellow crystals

139

213.25

@ 25 °C (est)

@ 25 °C

PHENOTHIAZINE
92-84-2

yellow, rhombic leaflets or diamond-shaped plates from toluene or butanol; yellow prisms from alcohol; grayish-­green to greenish yellow powder, granules or flakes

371

185.1

186.26

insol

PHENYLENEPYRENE
193-39-5

yellow plates or needles from light petroleum

530

162.5-164

insol

1.0x10- 10 torr

PIPERAZINE
110-85-0

plates or leaflets from ethanol; white to slightly off-white lumps or flakes; colourless, transparent, needle-like crystals

146

106

86.14

v sol

1.1

3.0

81 oc

PIPERAZINE DIHYDROCHLORIDE
142-64-3

cream coloured crystalline powder; white needles

159.07

41%

PIPERIDINE
110-89-4

clear, colourless liquid

@ 760 mm Hg

-7

85.15

v sol

0.8622

3.0

@ 29.2 °C

16 cc

1,3-PROPANE SULTONE
1120-71-4

colourless liquid or white crystals

@ 0.039 atm.

31

122.1

100 g/l

@ 40 °C/4 °C

PROPYLENE IMINE
75-55-8

colourless, oily liquid

66

-65

57.1

sol

@ 16 °C/4 °C

2.0

14.9

-39 cc

PYRIDINE
110-86-1

colourless liquid; slightly yellow

115.2

-42

79.10

misc

0.9819

2.73

2.0

1.8 ll
12.4 ul

17 cc

482

PYRIMIDINE
289-95-2

123.8

22

80.09

misc

PYRROLIDINE
123-75-1

colourless to pale yellow liquid

88.5-89

-57.8

71.12

misc

@ 22.5 °C/4 °C

2.45

@ 39 °C

@ -2°C

2-PYRROLIDINONE
616-45-5

liquid

@742 mm Hg

25

85.1

v sol

1.120

2.93

110 cc

QUINOLINE
91-22-5

colourless to brown liquid

237.7

-15

129.16

insol

1.0929

4.45

0.1

1.2 ll
7 ul

99

480

SULPHOLANE
126-33-0

white or creamy white, crystalline powder

285

27.4-27.8

120.16

misc

@ 30 °C/4 °C

@ 27.6 °C

177 oc

TETRAHYDRO­THIOPHENE
110-01-0

water-white liquid

121.0

-96.1

88.2

insol

0.9987

3.05

@ 25 °C

1.1 ll
12.1 ul

12

200

THIOPHENE
110-02-1

colourless liquid

84.16

-38.25

84.14

insol

1.06494

2.9

@ 12.5 °C

-1

2-VINYLPYRIDINE
100-69-6

colourless liquid

159-160

159-160

105.1

sl sol

0.9983

@ 44.5 °C

 

Back

Read 9422 times

" DISCLAIMER: The ILO does not take responsibility for content presented on this web portal that is presented in any language other than English, which is the language used for the initial production and peer-review of original content. Certain statistics have not been updated since the production of the 4th edition of the Encyclopaedia (1998)."

Contents