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/REAXYS Number:
1719937
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

vapor density

>3 (vs air)

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. 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.

Packaging

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

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes

C

Risk Statement

20/21/22-35-37

Safety Statement

26-36/37/39-45

RIDADR

UN 2531 8 / PGII

WGK Germany

WGK 1

Flash Point(F)

152.6 °F - closed cup

Flash Point(C)

67 °C - closed cup

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...
Thomas J Dursch et al.
Biomaterials, 35(2), 620-629 (2013-10-24)
Two-photon confocal microscopy and back extraction with UV/Vis-absorption spectrophotometry quantify equilibrium partition coefficients, k, for six prototypical drugs in five soft-contact-lens-material hydrogels over a range of water contents from 40 to 92%. Partition coefficients were obtained for acetazolamide, caffeine, hydrocortisone...
Riteshkumar J Patel et al.
Journal of biomedical materials research. Part A, 100(8), 2054-2062 (2012-05-15)
Exudate analysis indicated that both hydroxamated methacrylic acid-based (HX-MAA) and methacrylic acid-based (MAA) beads without hydroxamation, implanted in an air pouch with gelatin discs, elicited similar biological responses, with both resulting in high cell counts and chemokine (MCP3) levels, relative...
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