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155721

Methacrylic acid

contains 250 ppm MEHQ as inhibitor, 99%

Synonym(s):

2-Methacrylic acid, 2-Methylpropenoic acid

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About This Item

Linear Formula:
H2C=C(CH3)COOH
CAS Number:
79-41-4
Molecular Weight:
86.09
UNSPSC Code:
12162002
NACRES:
NA.23
PubChem Substance ID:
24849561
EC Number:
201-204-4
Beilstein/REAXYS Number:
1719937
MDL number:
MFCD00002651
Assay:
99%
Form:
liquid
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vapor density

>3 (vs air)

Quality Segment

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.)

solubility

water: 98 g/L at 20 °C

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

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.

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Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

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

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Flash Point (°F)

152.6 °F - closed cup

Flash Point (°C)

67 °C - closed cup

PPE (personal protective equipment)

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Deleterious substance

pdsc

Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

155721-5G:4548173107790 + 155721-VAR: + 155721-25ML: + 155721-2.5L: + 155721-18KG:4548173107769 + 155721-2KG:4548173228310 + 155721-1L: + 155721-100G:4548173107752 + 155721-3KG:4548173107776 + 155721-500ML: + 155721-500G:4548173107783 + 155721-BULK:

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