Bis(tert-butyldioxyisopropyl)benzene DPIB 25155-25-3

Di(tert-butylperoxyisopropyl) benzene

Trade name: initiator DPIB

English name: Di(tert-butylperoxyisopropyl)benzene

Chemical name: Di(tert-butylperoxyisopropyl) benzene

Molecular Formula: C20 H34 O4

Molecular weight: 338.5

Theoretical active oxygen content: 9.45%

CAS No.: 25155-25-3

UN No. 3106

Einecs : 218-664-7

Sea freight (IMDG): 5.2 Packing Group II, Class D solid peroxides.

Main decomposition products: tert-butanol, dihydroxy diisopropylbenzene, bi-acetylbenzene, acetyl-2-hydroxyisopropylbenzene, methane, acetone, etc.

Security indicators:

0.1 hours: 156°C

1 hour: 134°C

10 hours: 115°C

Thermal stability data:

Self-accelerated decomposition temperature (SADT): 80°C

Critical temperature (Tem): 75°C

Storage temperature (Tsmax): -/15 °C

Activation energy E (KJ/mol): 152.69

Technical standards:

Appearance: white solid powder or flaky solid

Content: 96% min                                   

Uses.

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

2. It is an initiator for styrene polymerization. This product is an initiator for the polymerization of styrene itself, and is characterized by a higher molecular weight of the resulting PS than that of thermal initiation polymerization and a high polymerization conversion rate.

3. It is the most common rubber vulcanizing agent: it has excellent scorch safety it is usually diluted with silicone oil or other neutral solvents or neutral fillers, safe handling temperature is 1350C, crosslinking temperature is

1750C.

Packaging and Transportation:

The standard packing of our factory is 20kg corrugated carton packing, and we can also supply according to the packing size required by the customers, the customers can put forward the requirements at the time of ordering.

Storage Precautions.

1. Store in a cool and ventilated space with a temperature not exceeding 150C.

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

3. The lighting and ventilation of the storage room and other facilities are of explosion-proof type, and the switch is located outdoors.

4. When handling, it should be put down carefully and gently to prevent the damage of package and container, prohibit impact and oscillation, and pay attention to personal protection in the packing and handling operation.

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

Product expiration date:

In strict accordance with the manufacturer's prompt conditions of storage, transportation. Product quality can be guaranteed within six months.

Fire protection:

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

2, the fire should be quickly withdrawn to a safe distance away and use the water gun park rescue, notify the fire department to deal with.