8.00578

Methacrylic acid

(stabilised with hydroquinone monomethyl ether) for synthesis

• Synonym(s): Methacrylic acid, 2-Methylpropenoic acid
• Linear Formula: CH₂C(CH₃)COOH
• CAS Number: 79-41-4
• Molecular Weight: 86.09
• MDL number: MFCD00002651
• UNSPSC Code: 12352106
• EC Index Number: 201-204-4
• NACRES: NA.22

Properties

• vapor pressure: <1 hPa ( 20 °C)
• Quality Level: 200
• Assay: ≥99% (GC)
• form: liquid
• autoignition temp.: 370 °C
• potency: 1320 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 1.6-8.7 % (v/v)
• pH: 2.0-2.2 (20 °C, 100 g/L in H₂O)
• bp: 161 °C/1013 hPa
• mp: 15 °C
• transition temp: flash point 65 °C
• density: 1.015 g/cm³ at 20 °C
• storage temp.: 15-25°C
• InChI: 1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
• InChI key: CERQOIWHTDAKMF-UHFFFAOYSA-N

Description

General description

Methacrylicacid (MAA) is a liquid carboxylic acid that is colorless, viscous, and solublein most organic solvents. It is generated on a large scale in industrialapplications as a precursor to its esters, particularly methyl methacrylate(MMA).

Application

Methacrylic acid is used in the graft copolymerization with jute fiber.

Analysis Note

Assay (GC, area%): ≥ 99 %
Density (d 20 °C/ 4 °C): 1.013 - 1.015
Identity (IR): passes test

Safety Information

• Pictograms: GHS05,GHS06
• Signal Word: Danger
• Hazard Statements: H302 + H332 - H311 - H314 - H335
• Precautionary Statements: P261 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 1
• Flash Point(F): 152.6 °F - closed cup
• Flash Point(C): 67 °C - closed cup