Acrylic Acid
Acrylic acid (IUPAC: prop-2-enoic acid) is an organic compound with the formula CH2=CHCOOH. It is the simplest unsaturated carboxylic acid, consisting of a vinyl group connected directly to a carboxylic acid terminus. This colorless liquid has a characteristic acrid or tart smell. It is miscible with water, alcohols, ethers, and chloroform. More than a million tons are produced annually.
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Product Info
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| Names | |
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| IUPAC name
Acrylic acid
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| Preferred IUPAC name
Prop-2-enoic acid
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Other names
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| Identifiers | |
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3D model (JSmol)
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| 635743 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.001.071 |
| EC Number |
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| 1817 | |
| KEGG | |
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PubChem CID
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| RTECS number |
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| UNII | |
| UN number | 2218 |
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CompTox Dashboard (EPA)
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| Properties | |
| C3H4O2 | |
| Molar mass | 72.063 g/mol |
| Appearance | Clear, colorless liquid |
| Odor | Acrid |
| Density | 1.051 g/mL |
| Melting point | 14 °C (57 °F; 287 K) |
| Boiling point | 141 °C (286 °F; 414 K) |
| Miscible | |
| log P | 0.28 |
| Vapor pressure | 3 mmHg |
| Acidity (pKa) | 4.25 (H2O) |
| Viscosity | 1.3 cP at 20 °C (68 °F) |
| Hazards | |
| GHS labelling: | |
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| Danger | |
| H226, H302, H312, H314, H332, H400 | |
| P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P273, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P363, P370+P378, P391, P403+P235, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | 49.4 °C (120.9 °F; 322.5 K) |
| 429 °C (804 °F; 702 K) | |
| Explosive limits | 2.4–8.02% |
| NIOSH (US health exposure limits): | |
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PEL (Permissible)
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None |
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REL (Recommended)
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TWA 2 ppm (6 mg/m3) [skin] |
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IDLH (Immediate danger)
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N.D. |
| Safety data sheet (SDS) | MSDS |
| Related compounds | |
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Other anions
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acrylate |
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Related carboxylic acids
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acetic acid propionic acid lactic acid 3-hydroxypropionic acid malonic acid butyric acid crotonic acid |
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Related compounds
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allyl alcohol propionaldehyde acrolein methyl acrylate |
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