BCHPC-16 is an initiator for suspension polymerization of acrylates and methacrylates.

Specifications

Appearance	White powder
Assay	94.0-97.0 %
Inorganic + organic hydrolysable chloride	≤ 4000 mg/kg

Characteristics

Bulk density, 20 °C	450-480 kg/m³
Density, 20 °C	1.13 g/cm³

Applications

BCHPC-16 can be used for the market segments: polymer production, thermoset composites and acrylics with their different applications/functions. For more information please check our website and/or contact us.

Half-life data

The reactivity of an organic peroxide is usually given by its half-life (t½) at various temperatures. For BCHPC-16 in chlorobenzene:

0.1 hr	82°C (180°F)
1 hr	64°C (147°F)
10 hr	48°C (118°F)
Formula 1	kd = A·e-Ea/RT
Formula 2	t½ = (ln2)/kd
Ea	126.39 kJ/mole
A	7.44E+15 s-1
R	8.3142 J/mole·K
T	(273.15+°C) K

Thermal stability

Organic peroxides are thermally unstable substances, which may undergo self-accelerating decomposition. The lowest temperature at which self-accelerating decomposition of a substance in the original packaging may occur is the Self- Accelerating Decomposition Temperature (SADT). The SADT is determined on the basis of the Heat Accumulation Storage Test.

SADT	40°C
Emergency temperature (T。 )	35°C
Control temperature (Tc)	30°C
Method	The Heat Accumulation Storage Test is a recognized test method for the determination of the SADT of organic peroxides (see Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria – United Nations, New York and Geneva).

Storage

Due to the relatively unstable nature of organic peroxides a loss of quality can be detected over a period of time. To minimize the loss of quality, Thousands Chemicals recommends a maximum storage temperature (Ts max. ) for each organic peroxide product.

Ts max.	20°C (please see note below)
Note	When stored according to these recommended storage conditions, 301-20PP will remain within the Nouryon specifications for a period of at least 12 months after delivery.

Packaging and transport

In North America BCHPC-16 is packed in non-returnable cartons containing 25 polyethylene bags of 1 lb net weightor 5 polyethylene bags of 5 lb net weight. In other regions the standard packaging is a cardboard box for 20 kg peroxide. Both packaging and transport meet the international regulations. For the availability of other packed quantities contact your Nouryon representative. BCHPC-16 is classified as Organic peroxide type C; solid, temperature controlled; Division 5. 2; UN 3114.

Safety and handling

Keep containers tightly closed. Store and handle BCHPC-16 in a dry well-ventilated place away from sources of heat or ignition and direct sunlight. Never weigh out in the storage room. Avoid contact with reducing agents (e. g. amines), acids, alkalis and heavy metal compounds (e. g. accelerators, driers and metal soaps). Please refer to the Safety Data Sheet (SDS) for further information on the safe storage, use and handling of BCHPC-16. This information should be thoroughly reviewed prior to acceptance of this product..

Major decomposition products

Carbon dioxide, 4-tert-Butyl-cyclohexanol