Methacrylic acid 79-41-4 2-Methyl-2-propenoic acid
Methacrylic acid Chemical Properties |
mp | 16 °C |
bp | 163 °C(lit.) |
density | 1.015 g/mL at 25 °C(lit.) |
vapor density | >3 (vs air) |
vapor pressure | 1 mm Hg ( 20 °C) |
refractive index |
n |
Fp | 170 °F |
storage temp. | Indoors |
Water Solubility | 9.7 g/100 mL (20 ºC) |
Merck | 14,5941 |
BRN | 1719937 |
Stability: | May be stabilized by the addition of MEHQ (Hydroquinone methyl ether, ca. 250 ppm) or hydroquinone. In the absence of a stabilizer this material will readily polymerize. Combustible. Incompatible with strong oxidizing agents, hydrochloric acid. |
CAS DataBase Reference | 79-41-4(CAS DataBase Reference) |
NIST Chemistry Reference | 2-Propenoic acid, 2-methyl-(79-41-4) |
EPA Substance Registry System | 2-Propenoic acid, 2-methyl-(79-41-4) |
Safety Information |
Hazard Codes | C |
Risk Statements | 21/22-35-37-20/21/22 |
Safety Statements | 26-36/37/39-45 |
RIDADR | UN 2531 8/PG 2 |
WGK Germany | 1 |
RTECS | OZ2975000 |
HazardClass | 8 |
PackingGroup | II |
Hazardous Substances Data | 79-41-4(Hazardous Substances Data) |
MSDS Information |
Provider | Language |
---|---|
ACROS | English |
SigmaAldrich | English |
ALFA | English |
Methacrylic acid Usage And Synthesis |
Chemical Properties | colourless liquid or crystals with an unpleasant odour. |
General Description | A clear colorless liquid (or low-melting solid) with a pungent odor. Corrosive to metals and tissue. Flash point 170°F. Melting point 61°F. May polymerize exothermically if heated or contaminated. If the polymerization takes place inside a container, the container may rupture violently. Less dense than water. Vapors heavier than air. Used to make plastics. |
Air & Water Reactions | Soluble in water. |
Reactivity Profile | Methacrylic acid reacts with strong oxidizing agents. Presents a storage hazard: violent exothermic polymerizations leading to explosion can occur spontaneously, particularly at low inhibitor or stabilizer concentrations [Anon., CISHC Chem. Safety Summ., 1979, 50, p. 34; Bond, J., Loss Prev. Bull., 1991, 101, p. 1]. |
Health Hazard | INHALATION: Severe irritation to respiratory tract. EYES: Short contact can cause severe damage. SKIN: Causes severe irritation and burns. Ingestion: High hazard - may cause death or permanent injury on short exposure to small quantities. OTHER: May affect blood pressure temporarily. |
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