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Product Categories: Fine chemical;Pyrazoles,Pyrazines
Methacrylic acid Basic information
Product Name: Methacrylic acid
Synonyms: .alpha.-Methylacrylicacid;2-Methyl-2-propenoic acid;2-methyl-2-Propenoicacid;2-Methyl-2-propensαure; 2-methyl-acrylicaci;2-methylene-propionicaci;2-methylenepropionicacid;2-Methylpropencicacid
CAS: 79-41-4
MF: C4H6O2
MW: 86.09
EINECS: 201-204-4
Product Categories: fine chemical;Pyrazoles,Pyrazines
Mol File: 79-41-4.mol


Methacrylic acid Chemical Properties
Melting point  16 °C
Boiling point  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  n20/D 1.431(lit.)
Fp 170 °F
storage temp.  Indoors
form  Liquid
color  Clear
PH 2.0-2.2 (100g/l, H2O, 20℃)
explosive limit 1.6-8.7%(V)
Water Solubility 9.7 g/100 mL (20 ºC)
Sensitive  Moisture & Light Sensitive
Merck  14,5941
BRN  1719937


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 


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)


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