Agent Name

Di-tert-butyl peroxide

Alternative Name

Bis(1,1-dimethylethyl)peroxide

CAS Number

110-05-4

Formula

C8-H18-O2

Major Category

Other Classes

Synonyms

Bis(1,1-dimethylethyl)peroxide; Bis(t-butyl)peroxide; Bis(tert-butyl) peroxide; Cadox; Cadox TBP; DTBP; Di-t-butyl peroxide; Di-tert-Butyl hydroperoxide; Di-tert-butyl peroxyde [Dutch]; Di-tert-butylperoxid [German]; Interox DTB; Kayabutyl D; Perbutyl D; Perossido di butile terziario [Italian]; Peroxide, bis(1,1-dimethylethyl); Peroxyde de butyle tertiaire [French]; Trigonox B; t-Butyl peroxide; tert-Butyl peroxide; [ChemIDplus] UN3107

Category

Peroxides, Organic

Description

Clear, water-white or yellow liquid; Insoluble in water; [HSDB] Faintly yellow clear liquid; Insoluble in water; [MSDSonline]

Sources/Uses

Used as an initiator for high-temperature, high-pressure polymerizations of ethylene and halogenated ethylenes; in the synthesis of polyketones; as a finishing catalyst for polystyrene; as a polymerization catalyst for acrylonitrile polymers and resins (including olefins, styrene, styrenated alkyds, and silicones); as curing agent for styrenated alkyds and silicone rubbers; as ignition accelerator for diesel fuels; and as a cross-linking agent (rubber and resins); [HSDB]

Comments

Caused muscle weakness and ataxia after intraperitoneal lethal-dose studies of rats; Mild irritant effect when administered into eyes of rabbits; [RTECS] Fire hazard; Strong oxidizer; [Hawley] A skin and mucous membrane irritant; Corrosive to eyes; [HSDB] An eye and respiratory tract irritant; [ICSC] May cause irritation; [MSDSonline]

Exposure Assessment
Vapor Pressure

25.1 mm Hg

Lethal Concentration

LC50 (rat) > 4,100 ppm/4h

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Oragnic peroxide type E, liquid."

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: