Agent Name

2,2-Dimethylpropanoic acid

Alternative Name

Pivalic acid

CAS Number

75-98-9

Formula

C5-H10-O2

Major Category

Other Classes

Synonyms

2,2-Dimethylpropionic acid; Acetic acid, trimethyl-; Kyselina 2,2-dimethylpropionova [Czech]; Kyselina pivalova [Czech]; Neopentanoic acid; Propanoic acid, 2,2-dimethyl-; Propionic acid, 2,2-dimethyl-; Trimethylacetic acid; Versatic 5; alpha,alpha-Dimethylpropionic acid; tert-Pentanoic acid; [ChemIDplus] UN1759

Category

Organic Acids

Description

Colorless to white solid or colorless liquid; [ICSC] White low melting solid; mp = 33-35 deg C; [MSDSonline]

Sources/Uses

Used to make pharmaceuticals and as a veterinary medication; [HSDB] Also used to make other organic chemicals, as an additive to gasoline and aviation fuel, in gas permeable membranes, and in optical materials (plastic lenses and coating applications); [CHEMINFO]

Comments

A skin, eye, and respiratory tract irritant; [ICSC] In lethal-dose inhalation studies, causes somnolence in mice and dyspnea in rats; [RTECS] A corrosive substance that can cause injury to the skin and eyes; [CHEMINFO] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; Can be absorbed through skin; [MSDSonline]

Exposure Assessment
Vapor Pressure

1.82 mm Hg

Explanatory Notes

Flash point = 64 deg C; [ICSC] The Guide in the Emergency Response Guidebook is for "Corrosive solid, n.o.s."

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
Processes

Industrial Processes with risk of exposure: