Peroxybenzoic acid, t-butyl ester

Agent Name
Peroxybenzoic acid, t-butyl ester
Alternative Name
tert-Butyl peroxybenzoate
CAS Number
614-45-9
Formula
C11-H14-O3
Major Category
Plastics & Rubber
Peroxybenzoic acid, t-butyl ester formula graphical representation
Synonyms
tert-Butyl peroxybenzoate; Benzenecarboperoxoic acid, 1,1-dimethylethyl ester; Benzoyl tert-butyl peroxide; Chaloxyd TBPB; Esperox 10; Novox; Perbenzoate de butyle tertiaire [French]; Perbenzoic acid, tert-butyl ester; Perbutyl Z; Peroxybenzoic acid, tert-butyl ester; Trigonox C; t-Butyl perbenzoate; t-Butyl peroxy benzoate; terc.Butylester kyseliny peroxybenzoove [Czech]; terc.Butylperbenzoan [Czech]; tert-Butyl perbenzoate; tert-Butyl peroxy benzoate; [ChemIDplus] UN3103
Category
Curing Agents (Aromatic)
Description
Colorless liquid; mp = 8.5 deg C; [Hawley] Colorless to slightly yellow liquid; mp = 8 deg C; [HSDB]
Sources/Uses
Used as polymerization initiator (polyethylene, polystyrene, polyacrylates, and polyesters) and curing agent (unsaturated polyesters and silicon rubber); Also used as a chemical intermediate; [HSDB]
Comments
An oxidizer; [Hawley] A strong oxidizer; Explosive; Fire and explosion hazard on contact with organic materials; [CAMEO] In animal experiments, effects included somnolence and seizures after inhalation and liver changes after ingestion; [RTECS] Injection into chicken eggs caused a small increase in embryo malformations; [REPROTOX] Oxidizer that can cause fire on contact with combustible substances; An irritant; [MSDSonline]
Biomedical References

Exposure Assessment

Lethal Concentration
LC (rat) > 57 mg/m3/4h
Explanatory Notes
VP = 0.33 mm Hg at 50 deg C; [ChemIDplus] The Guide in the Emergency Response Guidebook is for "Organic peroxide type C, liquid."

Adverse Effects

Neurotoxin
Other CNS neurotoxin
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure: