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155721

Sigma-Aldrich

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:
Molecular Weight:
86.09
Beilstein:
1719937
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

vapor density

>3 (vs air)

Quality Level

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

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General description

Methacrylic acid (MAA) is an organic compound, colorless, viscous liquid. It is a monofunctional methacrylayte monomer.[98] 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).[02]

Application

MAA is used to synthesize poly(methacrylic acid)-g-poly(ε-caprolactone) copolymers,[90] polymeric blends with PMMA[91] and hydroxyethyl methacrylate (HEMA)-MAA hydrogels.

Packaging

5, 100, 500 g in glass bottle
2, 3 kg in glass bottle
18 kg in VerSA-Flow™

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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