Formula: | C₃H₈O₂ |
CAS Number: | 57-55-6 |
EC Number (EINECS): | 200-338-0 |
HS Code: | 29053100 |
UN Number: | 3082 (Environmentally Hazardous Substance, liquid, n.o.s.) |
IUPAC Name: | Propane-1,2-diol |
Also Known As: | 1,2-Propanediol; PG |
Molecular Weight, g/mol: | 76.09 |
Appearance: | Clear, colorless, viscous liquid |
Odor: | Nearly odorless |
Melting Point, °C: | -59 |
Boiling Point, °C: | 188.2 |
Density, g/cm³ (at 20°C): | 1.036 |
Flash Point, °C: | 99 |
Refractive Index (20°C): | 1.431 |
Solubility: | Miscible with water, ethanol, acetone |
Purity, %: | ≥99.5 |
Grades Available: | USP Kosher, Food Grade, Technical |
Packaging: | 25kg drums, 200kg drums, 1000kg IBC |
Primary Applications
Used as a solvent in pharmaceuticals, cosmetics, and food products
Humectant, stabilizer, and carrier in oral, topical, and injectable formulations
Ingredient in e-liquids, flavorings, and food additives
Secondary Applications
Raw material in polyester resins, antifreeze, and de-icing solutions
Intermediate in chemical syntheses for surfactants and polymers
End Industries Served: Pharmaceuticals, Cosmetics, Food & Beverage, Chemical, E-liquids, Polymers
Hazard Class (GHS): Not classified as hazardous; generally considered low toxicity
Hazard Statements (H-Codes):
H319: May cause mild eye irritation
H335: May cause respiratory irritation (vapors at high temperatures)
Precautionary Statements (P-Codes):
P280: Wear protective gloves/eye protection when handling in bulk
P261: Avoid breathing vapors/dust in confined areas
P305 + P351 + P338: IF IN EYES – rinse cautiously with water
Storage Conditions
Store in tightly closed containers in a cool, dry, well-ventilated area
Protect from freezing and contamination
Transport Information
ADR/RID: Not classified as dangerous goods
IMDG: Not classified as dangerous goods
IATA: Not classified as dangerous goods