155721

Methacrylic acid

contains 250 ppm MEHQ as inhibitor, 99%

• Synonym(s): 2-Methacrylic acid, 2-Methylpropenoic acid
• Linear Formula: H₂C=C(CH₃)COOH
• CAS Number: 79-41-4
• Molecular Weight: 86.09
• Beilstein/REAXYS Number: 1719937
• EC Number: 201-204-4
• MDL number: MFCD00002651
• UNSPSC Code: 12162002
• PubChem Substance ID: 24849561
• NACRES: NA.23

Properties

• vapor density: >3 (vs air)
• Quality Level: 200
• vapor pressure: 1 mmHg ( 20 °C)
• assay: 99%
• form: liquid
• autoignition temp.: 752 °F
• contains: 250 ppm MEHQ as inhibitor
• refractive index: n20/D 1.431 (lit.)
• pH: 2.0-2.2 (20 °C, 100 g/L)
• bp: 163 °C (lit.)
• mp: 12-16 °C (lit.)
• density: 1.015 g/mL at 25 °C (lit.)
• SMILES string: C=C(C)C(O)=O
• InChI: 1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)
• InChI key: CERQOIWHTDAKMF-UHFFFAOYSA-N

Description

General description

Methacrylic acid (MAA) is an organic compound, colorless, viscous liquid. It is a monofunctional methacrylayte monomer. It is soluble in warm water and miscible in most organic solvents. MAA is used as a starting material for the production of its esters, especially methyl methacrylate and poly methyl methacrylate (PMMA).

Application

MAA is used to synthesize poly(methacrylic acid)-g-poly(ε-caprolactone) copolymers, polymeric blends with PMMA and hydroxyethyl methacrylate (HEMA)-MAA hydrogels.

Safety Information

• pictograms: GHS06,GHS05
• signalword: Danger
• hcodes: H302 + H332,H311,H314,H335
• pcodes: 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: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 1
• flash_point_f: 152.6 °F - closed cup
• flash_point_c: 67 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter