Agent Name

Methacrylic acid

CAS Number

79-41-4

Formula

C4-H6-O2

Major Category

Other Classes

Synonyms

2-Methyl-2-propenoic acid; 2-Methylacrylic acid; 2-Methylenepropionic acid; 2-Methylpropenoic acid; 2-Propenoic acid, 2-methyl-; Acide methacrylique [French]; Acido metacrilico [Spanish]; Acrylic acid, 2-methyl-; Kyselina methakrylova [Czech]; Methacrylic acid; Propenoic acid, 2-methyl; Propionic acid, 2-methylene-; alpha-Methylacrylic acid; [ChemIDplus] UN2531

Category

Organic Acids

Description

Colorless liquid or solid (below 61 degrees F) with an acrid, repulsive odor; [NIOSH]

Sources/Uses

Used to synthesize organic compounds and as a monomer for plastics; [ACGIH]

Comments

Methacrylic acid can cause skin burns and, after acute heavy inhalation exposure, pulmonary edema. [ICSC] Causes second degree burns after a few minutes skin exposure; [CHRIS] Corrosive to skin; [Quick CPC] Methacrylic acid was negative in skin sensitization testing; [Reference #1]

Reference Link

Occupational allergic contact dermatitis caused by photobonded sculptured nails and a review of (meth) acrylates in nail cosmetics

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

20 ppm

MAK

50 ppm

Vapor Pressure

0.99 mm Hg

Explanatory Notes

Flash point = 77 deg C;

Flammability (NFPA)

2: High ambient temperature required

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Other Information

No other related information on this agent was found.