BIPB-CAS.25155-25-3/2212-81-9

Product name： BIPB （DPIB）

English name:Di(tert-butylperoxyisopropyl)benzene

Chemical name: bis (tert butyl peroxyisopropyl) benzene

Molecular formula：C20 H34 O4

Molecular weight：338.5

Theoretical active oxygen content：9.45%

CAS.：25155-25-3/ 2212-81-9

UN No.  3106

Einecs :  218-664-7

IMDG：5.2   

Class II packaging, Class D solid peroxide.

Main decomposition products: tert butanol, dihydroxydiisopropylbenzene, diacetylbenzene, acetyl-2-hydroxyisopropyl benzene, methane,  etc.

Safety indicators:

0.1 hour: 156 ℃

1 hour: 134 ℃

10 hours: 115 ℃

Thermal stability data:

Self accelerating decomposition temperature (SADT): 80 ℃

Emergency temperature (Tem): 75 ℃

Storage temperature (Tsmax): --/15 ℃

Activation energy E (KJ/mol): 152.69

Technical standards:

Appearance: White solid powder or flaky solid

Content：96%  min      

Purpose:

1. It is an excellent degradation agent for polypropylene: it can be made into rheological polypropylene with low molecular weight and narrow molecular weight distribution, and high melt index. It is a very important initiator for controllable rheological polypropylene.

2. It is an initiator for styrene polymerization. This product is an initiator for bulk polymerization of styrene, characterized by a larger molecular weight of PS generated compared to hot initiated polymerization, and a higher polymerization conversion rate.

3. It is the most common rubber vulcanizing agent: This product has excellent scorching safety. It is usually diluted with silicone oil or other neutral solvents or neutral fillers, with a safe processing temperature of 135 ℃ and a crosslinking temperature of 175 ℃.

Packaging and transportation:

The standard packaging is 20 kilograms of corrugated cardboard box packaging, which can also be supplied according to the packaging size requested by the customer. The customer can make a request when placing an order.

Storage precautions:

1. Store in a cool and ventilated space, with a warehouse temperature not exceeding 15 ℃.

2. Keep away from sparks and heat sources. It should be stored 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 the 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 six 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.