- Hydroacrylic acid
A colorless liquid with a slightly sweetish, pungent odor.
Versatile intermediate in organic synthesis, disinfectant.
Registry Numbers and Inventories.
EC Index Number
Carcinogenic Category 2; Very toxic; Irritant
Agricultural Chemical and Pesticide; Tumorigen; Mutagen
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Decomposition point, °C
Vapor pressure, mmHg
2.2 (25 C)
Vapor density (air=1)
1.145 g/cm3 (20 C)
Solubility in water
370 g/L (25 C)
22 g/s2 (20 C)
1.4138 (20 C)
Partition coefficient, pKow
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep away from sources of ignition. Store in a tightly closed container. Deep freeze (below -20 C). Store protected from light. Store under argon.
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Avoid runoff into storm sewers and ditches which lead to waterways. Neutralize spill with sodium bicarbonate. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition. Provide ventilation.
Stable when stored at +5 C in glass containers.
Strong oxidizing agents, strong bases, strong acids, acetates, halogens, thiocyanates, 2-aminoethanol, ammonium hydroxide, aniline, chlorosulfonic acid, ethylene diamine, ethyleneimine, hydrochloric acid, hydrofluoric acid, nitric acid, oleum, pyridine, sodium hydroxide, sulfuric acid.
Carbon monoxide, carbon dioxide.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Combustible Liquid. Extinguishing media: Use water spray to cool fire-exposed containers. In case of fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Moderately flammable. Combustion with moderate heating.
Containers may explode. When heated to decomposition, it emits acrid smoke and fumes. Stable when stored at 41F. Avoid storing in areas of exposure to the direct rays of the sun and in areas of high fire hazard. Tends to polymerize on storage. Avoid elevated temperatures.
Fire may produce irritating, corrosive and/or toxic gases.
TLV: 0.5 ppm; 1.5 mg/m3 A3 (ACGIH 1997). OSHA PEL: 1910.1013 See Appendix B NIOSH REL: Ca See Appendix A NIOSH IDLH: Potential occupational carcinogen N.D
O, G-A3, I-2B, N-2, CP65
May cause cancer in humans. Animal studies have reported the development of tumors.
May be harmful if swallowed. May cause irritation of the digestive tract and possible burns. May cause nausea, vomiting, headache, cramps, chills and drowsiness.
Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. Toxic if inhaled. May cause burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Inhalation may cause sore throat, shortness of breath, labored breathing, coughing, and pulmonary edema.
May be harmful if absorbed through the skin. Causes irritation with burning pain, scaling, itching and redness. May cause erythema and blistering.
May cause conjunctivitis. Causes redness and pain. Causes eye irritation and burns. May cause permanent corneal opacification.
Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
I; II; III
USCG CHRIS Code
IMO Chemical Code
IMO Pollution Category
IMO Hazard code