Acetic acid
CAS 64-19-7C2H4O260.05 g/mol
Acetic acid is a simple monocarboxylic acid containing two carbons. It has a role as a protic solvent, a food acidity regulator, an antimicrobial food preservative and a Daphnia magna metabolite. It is a conjugate acid of an acetate.
IUPAC: acetic acid
PubChem
Physical & Chemical Properties
| Melting Point | 61.9 °F (NTP, 1992) |
| Boiling Point | 244 °F at 760 mmHg (NTP, 1992) |
| Density | 1.051 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 73 °F (NTP, 1992) |
| Flash Point | 104 °F (NTP, 1992) |
| Vapor Pressure | 11.4 mmHg at 68 °F ; 20 mmHg at 86 °F (NTP, 1992) |
| pH | Aqueous solution 1.0 molar = 2.4; 0.1 molar = 2.9; 0.01 molar = 3.4 |
| Appearance | Acetic acid, glacial appears as a clear colorless liquid with a strong odor of vinegar. Flash point 104 °F. Density 8.8 lb / gal. Corrosive to metals and tissue. Used to make other chemicals, as a food additive, and in petroleum production. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2915
Data: UN Comtrade
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