Propylene glycol (C₃H₈O₂) is a colorless, odorless, and tasteless synthetic liquid. It is hygroscopic, meaning it absorbs water, and is known for its ability to dissolve many substances.
用途:
- Food and Beverages: Used as a food additive (E1520) to retain moisture and as a solvent for flavors and colorings.
- Cosmetics and Pharmaceuticals: Found in skin creams, lotions, and medicines to improve texture and stability.
- Antifreeze: Used in low-toxicity antifreeze and deicing solutions.
- Industrial Applications: Used in hydraulic systems, as a solvent, and in the production of plastics.
Propylene glycol is generally considered safe in small quantities, but should be handled according to guidelines in industrial settings.
