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Tert-Butyl peroxybenzoate (TBPB )

Properties: This product is a light yellow transparent liquid, boiling point 124℃ (760mmHg), decomposition temperature 76-77℃. Insoluble in water, soluble in most organic solvents.


Tert-Butyl Peroxybenzoate (TBPB )

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Tert-Butyl peroxybenzoate (TBPB )


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Product description

Product details


Trade name: initiator ZH-TBPB

English name: Tert-butyl peroxybenzoate

Chemical name: tert-butyl peroxybenzoate

Molecular formula: C11H14O3

Molecular weight: 194.2

Theoretical active oxygen content: 8.24%

CAS No.: 614-45-9

UN No. 3103

C type liquid organic peroxide, packing of class II dangerous goods.

Properties: This product is a light yellow transparent liquid, boiling point 124℃ (760mmHg), decomposition temperature 76-77℃. Insoluble in water, soluble in most organic solvents.

Specific gravity (25℃) 1.036-1.045, refractive index (25℃) 1.495-1.500.

Main decomposition products: tert-butanol, benzoic acid, methane, acetone, ethane, benzene, etc.

Safety index:

0.1hour: 142℃

1 hour: 122℃

10 hours: 103℃

Thermal stability data:

Self-accelerated decomposition temperature (SADT): 65℃

Critical temperature(Tem): 55℃

Storage temperature(Tsmax): 0/20℃

Activation energy E(KJ/mol): 151.59


1. high pressure polyethylene (LDPE) excellent medium temperature initiator, mostly used in the tube or kettle process, can be used with the initiator tert-butyl pivalate peroxide, tert-butyl 2-ethylhexanoate peroxide, initiator tert-butyl neodecanoate peroxide and diisopropylbenzene hydrogen peroxide, etc. together to form a composite catalyst system, polymerization effect is better.

2. In the styrene suspension polymerization process, the initiator TBPB and benzoyl peroxide (BPO) used in combination, is the most commonly used initiator of styrene or styrene copolymers.

3. In the polymerization process of acrylates with initiator TBPB instead of azo initiators, reducing the toxicity in the resin. It can also be used in the polymerization reaction of vinyl acetate.

4. It is a high temperature curing agent for unsaturated polyester. The product is widely used in the curing process of unsaturated polyester such as FRP, coatings, adhesives, such as SMC, BMC, DMC molding process, this product is the curing agent for high temperature curing of unsaturated polyester, the molding and pultrusion molding are very ideal curing effect. If and BPO, TBPEH and other initiators to form a compound initiator system is more effective.

5. is a good vulcanizing agent for most rubbers (except isobutylene rubber).

6. Add in the oil will greatly improve its cetane number.

Package and transportation:

The standard packaging of our factory is 20kg polyethylene package.

Storage precautions:

1. Store in a cool and ventilated space with the storage temperature not exceeding 20℃.

2. Keep away from fire and heat source. It should be stored separately from acids, reducing agents, flammable materials, combustible materials, reducing agents, etc. 3.

3. The lighting and ventilation facilities in the storage room should be explosion-proof, and the switch should be located outdoors.

4. The handling should be careful and light, to prevent damage to the packaging and containers, to prohibit impact and oscillation, and to pay attention to personal protection in the distribution and handling operations.

5. Please read the MSDS carefully when storing, transporting and using this product.

Product expiration date:

In strict accordance with the manufacturer's instructions for storage and transportation. The product quality can be guaranteed within three months.

Fire protection: 1:

1. the product may be violently decomposed due to heat, will be violent fire, a small amount of product fire should be quickly extinguished with foam or dry powder fire extinguisher.

2. Large fire should be quickly withdrawn to a safe distance away from the water gun to put out, and notify the fire department to deal with.

Contact information:

Sales telephone: 0533--7837228

Enterprise emergency telephone: 0533 ----7829889

Sales fax: 0533 ----7837228

Sales E-mail:

A high-tech enterprise specializing in the production of organic peroxides, it is mainly used as initiators and cross-linking agents in polymer polymerization reactions, such as polyethylene, polyvinyl chloride, rubber and other industries.

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