2,2-Dimethylpropanoic acid
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]
Biomedical References
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." VP from ChemIDplus;
Adverse Effects
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: