TMHP

Di(3.5.5-trimethylhexanoyl) peroxide is a colorless transparent liquid. It is is a commonly used initiator for the polymerization of LDPE and PVC.

Categories：

Organic peroxide

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TMHP
	Molecular formula	C18H34O4
	Molecular weight	314.5
	CAS NO.	3851-87-4
	UN NO.	3115
	EINECS.	223-356-0
Chemical name	Di(3.5.5-trimethylhexanoyl) peroxide

Brief Introduction：

Di(3.5.5-trimethylhexanoyl) peroxide is a colorless transparent liquid. It is is a commonly used initiator for the polymerization of LDPE and PVC.

Half-life Data:

0.1 hour: 96℃

1 hour: 77℃

10 hours: 59℃

Specification：

Appearance	Colorless transparent liquid
Purity	75 ± 1%min
Inorganic and organic hydrolyzable chlorides	250 mg/kg max
Color	20 Pt-Co max

Package and Storage：

Our standard packaging is 20 kg polyethylene containers.

Store in a cool, ventilated area with warehouse temperatures not exceeding 0°C.

Keep away from fire and heat sources. It should be stored separately from acids, flammables, combustibles, and reducing agents.

Application:

1.Ethylene Polymerization Initiator

TMHP is one of the most commonly used initiators for the polymerization of LDPE via both tubular and autoclave processes. To achieve a broader polymerization temperature range, it is often used in combination with other initiators. The typical polymerization temperature is 150–190 °C.

2.Vinyl Chloride Polymerization Initiator

TMHP is also used as an initiator for vinyl chloride polymerization via the aqueous suspension method, with an initiation temperature of 50–70 °C.

FAQ

What is organic peroxide?

Organic peroxide is a compound containing a peroxide functional group (-O-O-) attached to an organic molecule (containing carbon). These compounds are highly reactive due to the weak O-O bond, which easily breaks, releasing free radicals. They are often used as initiators in polymerization processes and in various industrial applications.

What are organic peroxides used for?

Organic peroxides are widely used as polymerization initiators, curing agents for resins, and crosslinking agents for elastomers and thermoplastics.

What should be noted when storing organic peroxides?

Organic peroxides are oxidizing and flammable substances and must be handled with caution. They should be stored in a cool, well-ventilated area with containers kept tightly closed, away from heat sources and open flames, and should not come into contact with rust. Keep them away from reducing agents, heavy metals, alkali metals, desiccants, accelerators, and other flammable chemicals. Product weighing should not be carried out inside the storage area. Always follow the storage temperature indicated on the product label.

Can you supply Custom synthesis service?

Yes, of course! With our dynamic group of dedicated and skilled people we can meet the needs of our customers worldwide, to develop customize specific catalyst according to the different chemical reactions, - in many cases in cooperation with our customers - that will enable you to lower your operating costs and improve your processes.

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Application Areas

EPS

EVA

Silicone Rubber

Products

BPO 75%

BPO 75% is a wet granular of diacyl peroxide, used as initiator of polymerization in expandable polystyrene(EPS),acrylic resins and curing agent for unsaturated polyester resin and elastomers.

BIPB

BIPB is a white to yellowish powder or flake,Insoluble in water, partly dissolving in ethanol, ether, benzene, carbon tetrachloride and other organic solvents.

DCP

Dicumyl peroxide is white crystalline.Melting point of 41-42℃. Relative density of 1.082.Decomposition temperature 120-125℃ room temperature stable. Gradually become yellowish under light. insoluble in water, soluble in ethanol, ether,acetic acid, benzene and petroleum ether.

BPO 50% Paste

BPO 50% paste is a fine dispersion of dibenzoyl peroxide in a smooth,non-separating fire resistant creamy paste form,which can be easily dissolved in resins and monomers.This product is less hazardous and easier to use than technical or dry forms of dibenzoyl peroxide.Slightly soluble in alcohols,petroleum solvents,insoluble in chlorinated solvents.

Phone/WhatsApp:

+86-16639322519

Email:

icason001@icason.com

About Us

Changzhou JOHO Chemical Co., Ltd., a subsidiary of Shanghai ICASON New Material Co., Ltd., represents the Group's strategic focus on polymer crosslinking, curing, and initiation technologies.