Product name: Propylene Glycol (1,2-Propanediol)
CAS No.: 57-55-6
Molecular formula: C3H8O2
Molecular weight: 76.09
Synonym Methyl glycol
Appearance Colorless transparent viscous liquid
Odor Almost odorlessChem‑physical Properties
Melting point -59 ℃
Boiling point 187.3 ℃
Density (20℃) 1.035‑1.038 g/cm³
Flash point 99 ℃(closed cup)
Refractive index (D20) 1.431‑1.433
Solubility Miscible with water, ethanol, acetone
Specification
| Item | USP grade | Tech grade |
| Content, %min. | 99.50%min. | 99.0%min. |
| Moisture | 0.20%max. | 0.20%max. |
| Density | 1.035-1.041 | 1.035-1.041 |
| Refractive index (25°C) | 1.431-1.435 | 1.426-1.435 |
| Distillation range IBP | 184.0°C min. | 183.0 °C |
| Alkalinity | 0.0020%max. | 0.01%max. |
| Chloride | 0.007%max. | -- |
| Sulphate | 0.006%max. | -- |
| Heavy metal | 5ppm max. | -- |
| Residue on ignition | 0.007%max | -- |
| Oxidizing substance | Not detected | -- |
| Reducing matter | Not detected | -- |
| 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 | -- |
| Color (Pt-Co) | 10 max | 16 max |
| IR Test | Complies with USP | -- |
Application
Industrial grade
1) Unsaturated Polyester Resins
2) Engine Coolants and Antifreeze
3) Hydraulic and Brake Fluid
4) Aircraft Deicing Fluid
5) Heat Transfer Fluids
6) Paint and Coatings
7) Liquid Detergents
Pharmaceutical grade (USP)1) Flavors and Fragrance
2) Comestics and Personal Care
3) Food and Flavorings
4) Pet Food and Animal Feed
5) Pharmaceutical Excipient
6) Tobacoo Moisturizing Agent
Packing
215kg/steel drum or plastic drum, 80 drums=17.2mt/20GP
IBC tank 1000kg.
Storage & Transportation
‑ Store in cool, dry, ventilated warehouse, keep sealed, prevent moisture absorption.
‑ Keep away from fire, heat source, separate from strong oxidants.
‑ General chemical goods for transportation.
Disclaimer: This data is for reference only, not binding specification.
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