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)

BENZENE
71-43-2

clear, colourless liquid; rhombic prisms

80

5.5

78.11

sl sol

0.8765

2.7

10

1.3 ll
7.1 ul

-11cc

500

BIPHENYL
92-52-4

white scales; leaflets from dil alcohol; colourless leaflets

256

69

154.20

insol

1.041

5.31

@ 71 °C

@ 232 mm Hg 5.8

113 cc

540

p-tert-BUTYLTOLUENE
98-51-1

clear, colourless liquid

193

-52

148.2

insol

0.8612

4.62

@ 25 °C

o-CHLOROSTYRENE
2039-87-4

liquid

188.7

-63.1

138.60

1.1000

@ 25 °C

CUMENE
98-82-8

colourless liquid

152.4

-96.0

120.19

insol

0.862

4.2

@ 38.3 °C

0.9 ll
6.5 ul

p-CYMENE
99-87-6

colourless liquid

177.1

-67.94

134.2

insol

0.8573

4.62

0.2

0.7 ll
5.6 ul

47 cc

436

DECAHYDRONAPH­THALENE
91-17-8

clear colourless liquid

155.5

-43

138.24

0.9 ppm

0.8965

4.8

@ 25 °C

@ 100 °C ul

58 cc

250; 255 trans-isomer

DIETHYLBENZENE
25340-17-4

liquid

181-184

<-20

insol

0.9

4.6

0.13

0.8 ll
5 ul

56

395-450

DIVINYLBENZENE
1321-74-0

colourless liquid

195

-66.9- -52

130.19

insol

0.9

4.48

@ 32.7 °C

1.1 ll
6.2 ul

169 oc

500

DODECYLBENZENE
123-01-3

colourless liquid

328

3

246.4

insol

0.9

8.47

< 10 Pa

1406

ETHYLBENZENE
100-41-4

colourless liquid

136

-95

106.16

insol

0.8670

3.66

0.9

1.6 ll
7 ul

128 cc

432

1-ETHYLNAPHTHALENE
1127-76-0

258.6

-13.9

156.22

insol

1.0082

2-ETHYLNAPHTHALENE
939-27-5

258

-7.4

156.22

insol

0.9922

INDENE
95-13-6

liquid; yellow needles

182

-1.8

116.15

insol

0.9968

D-LIMONENE
5989-27-5

liquid

178

-74.35

136.23

insol

0.8411

4.7

@ 14.4 °C

@ 302 °C ul

48

237

L-LIMONENE
5989-54-8

177.5

136.23

0.8422

LIMONENE
138-86-3

colourless mobile liquid

175.5-176.5

-95.5

136.23

@ 25 °C

0.8402

4.7

@ 68.2 °C

0.7 ll
6.1 ul

45 cc

237

METHYLSTYRENE
25013-15-4

colourless liquid

170-171

-76.67

118.18

insol

@ 25 °C /25 °C

4.08

0.15

0.8 ll
11 ul

544

494

a-METHYLSTYRENE
98-83-9

colourless liquid

164

-23.2

118.2

insol

0.91

4.08

29 Pa

0.9 ll
6.6 ul

8389 cc

574

o-METHYLSTYRENE
611-15-4

liquid

170

-69

118.17

insol

0.91

4.1

51

m-METHYLSTYRENE
100-80-1

liquid

172

-86.3

118.17

insol

0.91

4.1

p-METHYLSTYRENE
622-97-9

colourless liquid

173

-34

118.2

insol

0.8764

4.1

<0.1

1.1 ll
5.3 ul

45

515

NAPHTHALENE

white, crystalline flakes or solid; white scales, balls, powder or cakes; monoclinic plates from alcohol

217.9

80.2

128.16

insol

1.0253

4.42

0.01

0.9 ll
5.9. ul

526

METHYLNAPHTHALENE
1321-94-4

colouless liquid

241-244

-22

142.21

insol

1.0

82-97

PROPENYLBENZENE
873-66-5

liquid

175

-29.3

118.2

insol

0.911

4.1

0.9 ll
? ul

53

n-PROPYLBENZENE
103-65-1

colorless liquid

159.2 ° C at 760 mm Hg

-99.2

120.19

0.06 g/l

@ 20 ° C/4 ° C

4.14

1 mm Hg at 6.3 ° C

0.8-6%

STYRENE
100-42-5

colourless to yellowish, oily liquid; viscous liquid; solventy, rubbery

145

-31

104.14

insol

0.906

3.6

0.7

0.9 ll
6.8 ul

344-367

490

1,2,3,4-TETRAHY­DRONAPHTHALENE
119-64-2

colourless liquid

207.6

-35.7

132.20

insol

0.9702

4.6

@ 25 °C

@ 150 °C ul

77 oc
82 cc

TOLUENE
108-88-3

colourless liquid

111

-95

92.13

insol

0.866

3.2

2.9

1.2 ll
7.1 ul

4 cc

480

1,3,5-TRIMETHYL­BENZENE
108-67-8

liquid; clear, colourless

164.7

-44.7

120.19

insol

0.8637

1.006

1.86 mm Hg

o-XYLENE
95-47-6

colourless liquid

144

-25

106.16

insol

0.880

3.7

0.7

1.0 ll
7.0 ul

32 cc

463

m-XYLENE
108-38-3

clear, colourless liquid; mobile

139.3

-47.8

106.17

insol

@ 15 °C/4 °C

3.7

@ -47.9 °C

1.1 ll
7.0 ul

27 cc

527

p-XYLENE
106-42-3

colourless plates or prisms at low temp; colourless liquid

138.3

13

106.2

insol

0.861

3.7

0.9

1.1 ll
7.0 ul

27 cc

528