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| Chemical Name | Propylene Glycol |
| CAS Number | 57-55-6 |
| Product Number | SY000039 |
| Molecular Formula | C3H8O2 |
| Molecular Weight | 76.09442 |
1. Product Introduction
Propylene Glycol (PG)
CAS NO. 57-55-6
Molecular Formula: C3H8O2
Propylene Glycol (PG) other names 1,2-Propanediol; 1,2-Dihydroxypropane; Methyl ethyl glycol (MEG); Methylethylene glycol; is a viscous, colorless liquid which is nearly odorless. PG is hygroscopic (attracts water), has low toxicity and outstanding stability, as well as high flash and boiling points.
2. Specification or COA
|
Specification |
Index |
Result |
|
Appearance |
Colorless, viscous, clear hygroscopic liquid without odor |
---- |
|
Identification |
IR test |
- |
|
Assay (Purity) |
99.5% min |
99.68% |
|
Specific gravity |
1.035 – 1.037 g/cm3 at 25 °C |
1.036 |
|
Index of refraction |
1.431 – 1.433 nD20 |
1.433 |
|
Acidity |
≤ 0.20 ml of 0.10 N NaOH |
0.15 |
|
Water/Moisture |
0.2% max |
0.18% |
|
Residue on ignition |
0.004% max |
0.003% |
|
Chloride |
5 ppm max |
4 |
|
Heavy metals(as Pb) |
5 ppm max |
4 |
|
Sulphates（as SO42-） |
10 ppm max |
8 |
|
Oxidizing substances |
Not required |
-- |
|
Arsenic |
5 ppm max |
4 |
|
Color |
5 |
5 |
|
Reducing substances |
Not required |
-- |
|
Organic volatile impurities |
Chloroform: 60 ppm |
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|
3. Product application
Propylene Glycol (PG) is used in cosmetics, pharmaceuticals, and a wide range of other practical applications. Pharmaceutical-grade and industrial-grade are the two grades used.
Usage:
Adhesives, Sealants and Coatings
Alkyd Resins for Paint and Coatings
Latex Paints
UV-Curable Resins
Unsaturated Polyester Resins
Urethanes
Aircraft Deicing Fluids
Heat Transfer / Thermal Fluids (with a suitable inhibitor)
Hydraulic and Brake Fluids
Coolants and Antifreeze
4. Packing & Delivery
Standard export neutral packing in 215KG/drum, 20’FCL=80drums=17.2MT; 40’FCL=23.65MT.
Packing in ISO tank container of 24MT each.
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