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Di-(3.5.5-trimethylhexanoyl) peroxide (TMHP)

The standard package is polyethylene plastic drum with net weight of 20kg. It can also be packed according to the specifications required by the user.


Di-(3.5.5-trimethylhexanoyl) peroxide (TMHP)

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Di-(3.5.5-trimethylhexanoyl) peroxide (TMHP)


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Product description

Product details


Trade name: initiator ZH-TMHP

English name: Bis(3,5,5-trimethylhexanoyl) peroxide

Chemical name: Bis(3,3,5-trimethylhexanoyl) peroxide

Molecular formula: C18H34O4

Molecular weight: 314.5

Theoretical active oxygen content: 5.09%

CAS: 3851-87-4

Main decomposition products: CO2, 2,2,4,7,9,9-hexamethyldecane, 2,4,4-trimethylpentane .

Safety indicators:

Half-life (measured in chlorobenzene solution):

0.1 hour: 96℃

1 hour: 77℃

10 hours: 59℃

Thermal stability data:

Self-accelerated decomposition temperature (SADT): 20℃

Crisis temperature(Tem): 10℃

Control temperature(Tc): 0℃

Storage temperature (Tsmax): -15/0 ℃


The standard package is polyethylene plastic drum with net weight of 20kg. It can also be packed according to the specifications required by the user.

Safety precautions:

(1) Keep away from fire, open flame and heat source.

(2) Avoid contact with reducing agents (such as amines), acids, bases and heavy metal compounds (such as accelerators, metal soaps, etc.)

(3) Please refer to the safety data sheet (MSDS) of this product.


1.Ethylene polymerization initiator

TMHP is one of the most commonly used initiators for LDPE tubular or kettle polymerization, often used in combination with other initiators in order to obtain a wider range of polymerization temperature, 150-190 ℃

2. Vinyl chloride polymerization initiator

TMHP is also the initiator of vinyl chloride polymerization by aqueous suspension method, the initiation temperature is 50-70 ℃.

Storage conditions:

Keep the package closed and in good ventilation, the maximum storage temperature is 0 ℃, avoid and reducing agents such as amines, acids, alkalis, heavy metal compounds (accelerators and metal soap), strictly prohibited in the warehouse and take the packaging.

Storage stability:

Stored according to the conditions prompted by the manufacturer, the product in three months to ensure that the factory technical standards.

Fire extinguishing:

Small fires need to be extinguished with dry powder or carbon dioxide extinguishers, while spraying with large amounts of water to prevent re-ignition. Large fires need to be sprayed with a large amount of water at a safe distance away and notify the fire department.

Contact information:

Sales phone: 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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Company phone:+86-533-7829078

Sales call:+86-533-7829228

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