Ethyl tert-butyl ether
Agent Name
Ethyl tert-butyl ether
CAS Number
637-92-3
Formula
C6-H14-O
Major Category
Solvents
Synonyms
1,1-Dimethylethyl ethyl ether; 2-Ethoxy-2-methylpropane; 2-Methyl-2-ethoxypropane; ETBE; Ethyl 1,1-dimethylethyl ether; Ethyl tert-butyl oxide; Methyl-2-ethoxypropane; tert-Butyl ethyl ether; [ChemIDplus]
Category
Ethers (<C12)
Description
Colorless, pale yellow liquid with an unpleasant terpene-like odor; extremely flammable; [ACGIH]
Sources/Uses
An alternative gasoline additive to decrease carbon monoxide emissions; [ACGIH]
Comments
At lethal concentrations, exposed animals experience general anesthetic effects. [ChemIDplus] A skin and eye irritant; NOAEL = 500 ppm for CNS effects in rats; In 90 day inhalation studies of rats, causes liver changes (5000 ppm) and degenerative changes of spermatocytes in seminiferous tubules (1750-5000 ppm); [ACGIH]
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
25 ppm
Vapor Pressure
124 mm Hg
Lethal Concentration
LC50 (mice) = 123,000 mg/m3/15 min
Explanatory Notes
VP from ChemIDplus;
Adverse Effects
Neurotoxin
Acute solvent syndrome
Reproductive Toxin
Yes
ACGIH Carcinogen
Not Classifiable
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent: