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8.00578

Sigma-Aldrich

Methacrylic acid

(stabilised with hydroquinone monomethyl ether) for synthesis

Synonym(s):
Methacrylic acid, 2-Methylpropenoic acid
Linear Formula:
CH2C(CH3)COOH
CAS Number:
Molecular Weight:
86.09
MDL number:
EC Index Number:
201-204-4

vapor pressure

<1 hPa ( 20 °C)

Quality Level

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

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Methacrylic acid (stabilised with hydroquinone monomethyl ether) for synthesis

Sigma-Aldrich

8.00578

Methacrylic acid

Methacrylic acid contains 250&#160;ppm MEHQ as inhibitor, 99%

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155721

Methacrylic acid

Acrylic acid anhydrous, contains 200&#160;ppm MEHQ as inhibitor, 99%

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Acrylic acid

Glycidyl methacrylate 97%, contains 100&#160;ppm monomethyl ether hydroquinone as inhibitor

Sigma-Aldrich

151238

Glycidyl methacrylate

assay

≥99% (GC)

assay

99%

assay

99%

assay

97%

form

liquid

form

liquid

form

liquid

form

liquid

pH

2.0-2.2 (20 °C, 100 g/L in H2O)

pH

2.0-2.2 (20 °C, 100 g/L)

pH

-

pH

-

bp

161 °C/1013 hPa

bp

163 °C (lit.)

bp

139 °C (lit.)

bp

189 °C (lit.)

mp

15 °C

mp

12-16 °C (lit.)

mp

13 °C (lit.)

mp

-

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

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


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