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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 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.)

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

signalword

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

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

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
STBK6097
MKCQ4607
STBK4294
MKCP8688
MKCP6970

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Reversible Addition Fragmentation Chain Transfer
(RAFT) Polymerization
Moad G, et al.
Material Matters, 5(1) (2010)
Synthesis of graft copolymers of poly(methacrylic acid)-g-poly(?-caprolactone) by coupling ROP and RAFT polymerizations
Kiehl J, et al.
Polymer, 53(3), 694-700 (2012)
Xi Yu et al.
Food chemistry, 299, 125144-125144 (2019-07-20)
Magnetic nanoparticles were synthesised to extract Sudan dyes from chilli powders. The adsorbents used were magnetic ferroferric oxide nanoparticles coated with polystyrene. The extraction procedures for Sudan dyes comprised liquid-solid extraction and magnetic solid phase extraction. The conditions were optimised
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Global Trade Item Number

SKUGTIN
155721-500G04061837399183
155721-100G04061837399152
155721-18KG04061838742155
155721-2KG04061837399176
155721-3KG04061838742162
155721-5G04061838742179