Acetic acid, also known as ethanoic acid and glacial acetic acid, is a colorless transparent liquid with a strong pungent vinegar-like odor. The pure product (glacial acetic acid) tends to solidify into ice-like crystals at low temperatures. It is weakly acidic, highly corrosive and hygroscopic; its vapor is toxic and flammable, and it poses a fire and explosion hazard when exposed to open flames, high temperatures or oxidizing agents.
Physical&Chemical Properties
Molecular Formula:C2H4O2
Density:1.05g/cm³
Boiling Point:118℃
Solubility:
Freely miscible with water, ethanol, diethyl ether and glycerol; immiscible with carbon disulfide.
Molecular Weight:60.1g/mol
Flash Point:39℃
Melting Point:16.7℃
Uses
1. Chemical raw materials: For the production of vinyl acetate, acetates, acetate salts, cellulose acetate, etc.
2. Food industry: Used as an acidity regulator (E260), preservative, and raw material for vinegar.
3. Pharmaceutical & pesticide industry: For the synthesis of pharmaceutical intermediates and pesticide raw materials.
4. Solvent: Applied in photography, dyestuff, rubber and coating industries.
5. Daily use & cleaning: Used as a descaling agent and printing and dyeing auxiliary.
Safety,Security&Risk
Chemical Hazards
The substance is a weak acid.It reacts violently with strong oxidizing agents.There is a risk of fire and explosion.It reacts violently with strong bases, strong acids and many other compounds.It corrodes certain types of plastics, rubber and coatings.