Propylene glycol
CAS Number 57-55-6
Chemical Formula C3H8O2
Synonyms:
1,2-Propanediol
Propane-1,2-diol
Appearance: Colorless liquid
HS Code: 29053200
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Propylene glycol CAS# 57-55-6
Propylene glycol is a colorless, odorless, viscous liquid that is widely used across food, pharmaceutical, cosmetic, and industrial sectors. It acts as an effective humectant, solvent, and stabilizer, and is fully miscible with water, ethanol, and many organic solvents. It exhibits low toxicity and high stability under normal conditions.
Parameters
| Parameter | Value |
| Melting point | -16 °C(lit.) |
| Boiling point | 188 °C(lit.) |
| density | 1.036 g/mL at 25 °C(lit.) |
| vapor density | 2.62 (vs air) |
| vapor pressure | 0.08 mm Hg (20 °C) |
| refractive index | n20/D 1.432(lit.) |
| Fp | 225 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | Miscible with water |
| pka | 15.9 |
| form | Liquid |
| color | Colorless |
| Odor | Practically odorless |
| explosive limit | 2.6-12.5%(V) |
| Water Solubility | Fully miscible |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| LogP | -0.92 |
| CAS DataBase Reference | 57-55-6(CAS DataBase Reference) |
Safety Information
| Item | Value |
| Hazard Codes | None |
| Risk Statements | None |
| Safety Statements | 24/25 |
| RIDADR | UN 3082 |
| WGK Germany | 1 |
| RTECS | TY6300000 |
| Autoignition Temperature | 716 °F |
| TSCA | Yes |
| HS Code | 29053200 |
| Toxicity | LD50 orally in rats: 20 g/kg |
Product Application of Propylene glycol CAS# 57-55-6
Propylene glycol is widely used as a humectant, solvent, and carrier in cosmetics, foods, medicines, and industrial products. It is also used in antifreeze formulations, heat transfer fluids, and as a chemical intermediate.
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