Acrylic acid
CAS 79-10-7C3H4O272.06 g/mol
Acrylic acid is a alpha,beta-unsaturated monocarboxylic acid that is ethene substituted by a carboxy group. It has a role as a metabolite. It is a conjugate acid of an acrylate.
IUPAC: prop-2-enoic acid
PubChem
Physical & Chemical Properties
| Melting Point | 55 °F (NTP, 1992) |
| Boiling Point | 286 °F at 760 mmHg (NTP, 1992) |
| Density | 1.0497 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 63 °F (NTP, 1992) |
| Flash Point | 130 °F (NTP, 1992) |
| Vapor Pressure | 3.2 mmHg at 68 °F ; 5 mmHg at 81.1 °F (NTP, 1992) |
| Appearance | Acrylic acid is a colorless liquid with a distinctive acrid odor. Flash point 130 °F. Boiling point 286 °F. Freezing point 53 °F. Corrosive to metals and tissue. Prolonged exposure to fire or heat can cause polymerization. If polymerization takes place in a closed container, violent rupture may occur. The inhibitor (usually hydroquinone) greatly reduces the tendency to polymerize. |
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): 2916
Data: UN Comtrade
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