Sunday, 07 August 2011 06:41

Heterocyclic Compounds: Physical & Chemical Properties

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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

 

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Preface
Part I. The Body
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Part IV. Tools and Approaches
Part V. Psychosocial and Organizational Factors
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Part XVIII. Guides
Guide to Occupations
Guide to Chemicals
Guide to Units and Abbreviations