| ≥1 piece |
1 Properties and application
Molecular formula o C 3 H 8 O 2
Structural formula o CH 3 —CH—CH 2
¨O ¨O
OH OH
It is colorless liquid with steady viscosity and good water absorption. It is nearly odorless, inflammable and minutely toxic. Its viscosity (20°C°), specific heat capacity (20°C) and latent heat of vaporization (101.3kpa) are respectively 60.5mpa.s, 2.49KJ/(kg. °C) and 711KJ/kg. It can be mixed and solved with alcohol, water and various organic agents.
PG is the raw material for preparing unsaturated polyester resin, plasticizer, surface active agent, emulsifying agent and demulsifying agent. It can also be used as mould inhibitor, antiseptic for fruit, ice inhibitor and moisture preserving agent for tobacco.
|
Index |
Medical grade |
Industrial high grade |
Industrial grade |
|
Appearance |
Colorless transparent viscous liquid |
Colorless transparent viscous liquid |
Colorless transparent viscous liquid |
|
Content |
99.5 % min |
99.5 % min |
99.0% min |
|
Chroma( platinum-cobalt ) |
10 max |
10 max |
16 max |
|
Density (20/25 °C) |
1.0350~1.4010 |
1.0350~1.4010 |
1.0350~1.4010 |
|
Refractive index (25°C) |
1.4307~1.4317 |
1.431~1.435 |
1.426~1.435 |
|
Distillation range, IBP |
184.0 °C min |
184.0 °C min |
183.0 °C min |
|
Distillation range, DP |
189.0 °C max |
190.0 °C max |
190.0 °C max |
|
IR test |
passed |
-- |
-- |
|
Water content |
0.2 wt% max |
0.2 wt% max |
0.2 wt% max |
|
Alkalinity |
0.0020 wt% max |
0.0020 wt% |
0.01% max |
|
Chloride |
0.007 wt% max |
-- |
-- |
|
Sulphate |
0.006 wt% max |
-- |
-- |
|
Heavy metal |
5 ppm max |
-- |
-- |
|
Residue on ignition |
0.0070 wt% max |
-- |
-- |
|
Oxidizing substance |
Not required |
-- |
-- |
|
Reducing matter |
Not required |
-- |
-- |
|
Organic volatile matter-chloroform |
60 ppm max |
-- |
-- |
|
Organic volatile matter-dioxane |
380 ppm max |
-- |
-- |
|
Organic volatile matter-methylene chloride |
600 ppm max |
-- |
-- |
|
Organic volatile matter-trichloroethylene |
80 ppm max |
-- |
-- |
Packed in galvanized iron drum or varnish baked drum, NW: 200 or 215±0.5kgs. Packed in ISO tank or on the clients' requirements.