CAS No.: 64-19-7
Hazard Class: 8 (Corrosive) + 3 (Flammable Liquid)
UN No.: 2789
Appearance: Colorless liquid
Description: Glacial acetic acid (≥99.5% purity) is produced through methanol carbonylation or ethylene oxidation processes. This concentrated form of acetic acid is widely used in chemical synthesis (vinyl acetate monomer production), pharmaceutical manufacturing (aspirin synthesis), food industry (as acidity regulator E260 when diluted), and textile dyeing. Its high freezing point (16.6°C) and pungent vinegar-like odor require specialized storage in stainless steel or polyethylene containers. The product is strictly regulated for transport (UN 2789) due to corrosive and flammable properties, with workplace exposure limits set at 10 ppm (8-hr TWA).