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tert-Butyl peroxybenzoate

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tert-Butyl peroxybenzoate Basic information

Product Name:
tert-Butyl peroxybenzoate
CAS:
614-45-9
MF:
C11H14O3
MW:
194.23
EINECS:
210-382-2
Mol File:
614-45-9.mol
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tert-Butyl peroxybenzoate Chemical Properties

Melting point:
8 °C
Boiling point:
75-76 °C0.2 mm Hg(lit.)
Density 
1.021 g/mL at 25 °C(lit.)
vapor density 
6.7 (vs air)
vapor pressure 
3.36 mm Hg ( 50 °C)
refractive index 
n20/D 1.499(lit.)
Flash point:
200 °F
storage temp. 
2-8°C
solubility 
water: soluble1.18g/L
form 
Liquid
color 
Clear yellow
Water Solubility 
Immiscible
BRN 
1342734
Stability:
Stable. Combustible. Incompatible with a wide range of organic materials - oxidizer. May react violently with organic compounds.
InChIKey
GJBRNHKUVLOCEB-UHFFFAOYSA-N
CAS DataBase Reference
614-45-9(CAS DataBase Reference)
NIST Chemistry Reference
tert-Butyl peroxybenzoate(614-45-9)
EPA Substance Registry System
tert-Butyl perbenzoate (614-45-9)
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Safety Information

Hazard Codes 
O,Xi,E,N
Risk Statements 
7-38-2-50-43
Safety Statements 
7-14-36/37/39-47-37-17-61-39-35-26
RIDADR 
UN 3103 5.2
WGK Germany 
2
RTECS 
SD9450000
TSCA 
Yes
HazardClass 
5.2
PackingGroup 
II
HS Code 
29163900
Hazardous Substances Data
614-45-9(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit > 2000 mg/kg

MSDS

  • Language:EnglishProvider:TBPB
  • Language:EnglishProvider:SigmaAldrich
  • Language:EnglishProvider:ACROS
  • Language:EnglishProvider:ALFA
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tert-Butyl peroxybenzoate Usage And Synthesis

Chemical Properties

colourless or slightly yellow liquid

Uses

Polymerization initiator for polyethylene, polystyrene, polyacrylates, and polyesters; chem- ical intermediate.

Uses

t-Butyl peroxybenzoate is used for elevatedtemperaturecuring of polyesters and to initiatepolymerization reactions.

General Description

Clear, colorless to slightly yellow liquid with a mild, aromatic odor. tert-Butyl peroxybenzoate also is stored and transported as a mixture with inert solids and as a solvent slurry, to mitigate the explosion hazard.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

TERT-BUTYL PEROXYBENZOATE explodes with great violence when rapidly heated to a critical temperature; pure form is shock sensitive and detonable [Bretherick 1979 p. 602]. Upon contact with organic matter, t-butyl peroxybenzoate can ignite or give rise to an explosion [Haz. Chem. Data 1973 p. 77].

Hazard

Oxidizing material; do not store near com- bustible materials.

Health Hazard

t-Butyl peroxybenzoate is a mild skin andeye irritant. Exposure to 500 mg/day causedmild irritation in rabbit eyes and skin. Toxicitydata on animals show a low order oftoxicity.
LD50 value, oral (mice): 914 mg/kg
It has been reported to cause tumors(blood) in mice. Its carcinogenic actions onhumans are unknown.

Fire Hazard

Highly reactive and oxidizing compound with moderate flammability; flash point (open cup) 107–110°C (224.6–230°F); autoignition temperature not reported.
It forms an explosive mixture with air; the explosive range not reported. It is not sensitive to shock but is heat sensitive. It explodes on heating; self-accelerating decomposition temperature 60°C (140°F).
It may react explosively when mixed with readily oxidizable, organic, and flammable substances. Fire-extinguishing agent: water from a sprinkler; use water to keep the containers cool.

Safety Profile

Moderately toxic by ingestion. A skin and eye irritant. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. See also PEROXIDES, ORGANIC. Potentially explosive when heated above 11 5'C. Explosive reaction on contact with organic matter or copperQ) bromide + limonene. When heated to decomposition it emits acrid smoke and fumes.

Carcinogenicity

Other studies have determined the possibility that t-butyl peroxybenzoate can be metabolized to free radicals by human carcinoma skin keratinocytes. Free radicals are suggested to be involved in the cascade of events occurring during tumor promotion .

storage

It should be stored in a well-ventilatedplace at a temperature between 10 and27°C (50–80°F), isolated from oxidizable,flammable, organic materials and accelerators.It should be shipped in glass, polyethylene,and earthenware containers of up to5-gallon capacity placed inside wooden orfiberboard boxes.

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tert-Butyl peroxybenzoateSupplierMore

Cheng Du Micxy Chemical Co.,Ltd Gold
Tel:
028-85632863-
Email:
sales@micxy.com;
Tianjin Zhongxin Chemtech Co., Ltd.
Tel:
022-66880623;022-89880623
Email:
sales@tjzxchem.com;sales@tjzxchem.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
21-61259100-
Email:
sh@meryer.com
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel:
821-50328103-801
Email:
3bsc@sina.com
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