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Sunday, 07 August 2011 06:18

Glycerols & Glycols: 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)

1,3-BUTANEDIOL
107-88-0

viscous liquid; pure compound is colourless

207.5

<50

90.12

sol

1.002

3.2

8 Pa

121

394

1,4-BUTANEDIOL
110-63-4

colourless, viscid liquid

230

20.1

90.12

misc

1.0171

3.1

@ 37.7 °C

121 oc

350

DIMETHYLENE GLYCOL
513-85-9

nearly colourless liquid or solid

90.12

3.1

402

DIETHYLENE GLYCOL
111-46-6

colourless liquid; syrupy liquid

245.8

-10.4

106.1

sol

1.18

3.66

5 Pa

1.6 ll
10.8 ul

143

400

DIPROPYLENE GLYCOL
110-98-5

colourless, slightly viscous liquid

233

134.17

misc

1.0252

4.63

@ 25 °C

137

2-ETHYL-1,3-HEXANE­DIOL
94-96-2

slightly oily liquid; colourless liquid

244.

-40

146.22

sl sol

@ 22 °C/4 °C

5.03

< 0.01 mm Hg

110 oc

335

ETHYLENE GLYCOL
107-21-1

slightly viscous liquid; clear, colourless syrupy liquid

197.6

-13

62.07

misc

1.1135

2.14

7 Pa

3.2 ll
15.3 ul

111 cc

398

GLYCEROL
56-81-5

clear colourless syrupy liquid

290

18

92.09

sol

1.2613

320

392

1,6-HEXANEDIOL
629-11-8

crystals

208

42.8

118.17

sol

@ 0 °C/4 °C

4.07

@ 25 °C (est)

101

320

2,5-HEXANEDIOL
2935-44-6

216-218

43

118.17

sol

0.9610

HEXYLENE GLYCOL
107-41-5

colourless liquid

198

-50

118.2

sol

@ 17 °C

4.1

6.7 Pa

1.3 ll
7.4 ul

93

260

NEOPENTYL GLYCOL
126-30-7

208

130

104.14

sol

PENTAERYTHRITOL
115-77-5

ditetragonal crystals from diluted hydrochloric acid; white, crystalline powder

sublimes

260

136.1

sol

@ 25 °C/4 °C

PROPYLENE GLYCOL
57-55-6

colourless viscous liquid

187.6

-59

76.1

misc

1.0361

2.6

106.6 Pa

2.6 ll
12.5 ul

99 cc

371

 

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