DTBP-CAS.110-05-4

Product Name： DTBP

English name: Di-tert-butyl peroxide

Chemical name: di-tert-butyl peroxide

Molecular formula：C8H17O2

Molecular weight：146.2

Theoretical active oxygen content：10.94%

CAS.：110-05-4

UN  No.  3107 

Einecs：203-733-6

IMO/IMDG  5227

Level: 5.2

ARD：5.2  

E-type liquid organic peroxide.

Property: This product is a slightly yellow transparent liquid, which can be diluted with the solvent specified by the customer. Insoluble in water, soluble in most organic solvents, flash point: 12.5 ℃ (closed dish), 18 ℃ (open dish), boiling point: 109 ℃, freezing point: -40 ℃. Viscosity (20 ℃): 0.9mPa. s.

Main decomposition products: tert butanol, isopropanol, methane, ethane, etc.

Safety indicators:

Half life:

0.1 hour: 164 ℃

1 hour: 141 ℃

10 hours: 121 ℃

Thermal stability data：

Self accelerating decomposition temperature (SADT): 80 ℃

Emergency temperature (Tem): 75 ℃

Storage temperature (Tsmax): -30/40 ℃

Activation energy E (KJ/mol): 130.74

Technical standards:

Appearance: Light yellow transparent liquid

Content：99%  min 

TBHP：0.1%max  

Specific gravity（25 ℃）：0.793-0.803

Refraction：1.385-1.391

Purpose:

1. As a polymerization initiator for vinyl and dienyl monomers, the recommended crosslinking temperature range is 180-240 ℃. It is a commonly used initiator in high-pressure polyethylene polymerization processes using the Kan method and the kettle method, with a crosslinking temperature range of 240-280 ℃.

2. It is a high-temperature curing agent for unsaturated polyester.

3. It is a vulcanizing agent for diene rubber, suitable for vulcanizing thick rubber products. Good tensile strength, elongation, compression and permanent deformation resistance, approved by FDA, suitable for vulcanization of the vast majority of rubber, polyurethane elastomers, and silicone rubber. It can obtain white and various bright colored rubber products.

4. Used in the high-speed spinning of polypropylene (polypropylene fiber) industry as a molecular weight regulator (used in the production of cooling masterbatch). It has the characteristics of narrow molecular weight distribution, high melt index, and uniform spinning, and is an excellent degradation agent used in polypropylene modification. By adding this product to polypropylene, it can be made into controlled rheological polypropylene, improve flowability, and make rapid molding of polypropylene possible, while reducing deformation caused by molding. Modified polypropylene can be made into thin film materials.

5. Used as oil additive and pour point depressant of transformer oil.

Packaging and transportation:

Our factory's standard packaging is 20 kilograms of polyethylene packaging. We can also supply according to the packaging size requested by the customer, and the customer can make requirements when placing an order.

Storage precautions:

1. Store in a cool and ventilated space, with a warehouse temperature not exceeding 30 ℃.

2. Keep away from sparks and heat sources. Store separately from acids, reducing agents, inflammables, combustibles, reducing agents, etc.

3. The lighting and ventilation facilities in the storage room are explosion-proof, with switches located outdoors.

4. When handling, care should be taken to prevent damage to packaging and containers, and impact and oscillation are prohibited. Personal protection should be taken during packaging and handling operations.

5. Please carefully read our factory's Safety Technical Manual (MSDS) when storing, transporting, and using this product.

Product validity period:

Store and transport in strict accordance with the manufacturer's instructions. The product quality can be guaranteed within three months.

Fire protection:

1. This product may decompose violently due to heating, and may ignite violently. A small amount of small fires should be put out quickly with foam or dry powder extinguishers.

2. The fire should be quickly evacuated to a safe distance and rescued with a water gun, and the fire department should be notified for handling.