Benzoyl Peroxide (BPO) 94-36-0

Dibenzoyl Peroxide
Trade Name: Initiator BPO
English Name: Dibenzoyl Peroxide
Chemical Name: Dibenzoyl Peroxide
Structural Formula:
Molecular Formula: C14H10O4
Molecular Weight: 242.2
Theoretical Active Oxygen Content: 6.61%
CAS: 94-36-0
UN No. 3104
EINECS: 2023276
IMO/IMDG: 5224
Class: 5.2
Road Transport (ARD): 5.2-8a Type D Solid Organic Peroxides.
Properties: This product is a white solid containing approximately 25% water. It is soluble in most organic solvents; the melting point of the pure substance is 103–105°C, and the bulk density is approximately 630 kg/m³
Major decomposition products: Carbon dioxide, benzoic acid, benzene, benzyl benzoate
Safety parameters:
Half-life:
0.1 hour: 113°C
1 hour: 91°C
10 hours: 71°C
Thermal Stability Data:
Self-Accelerating Decomposition Temperature (SADT): 80°C
Critical Temperature (Tem): 75°C
Control Temperature (Tc): --
Storage Temperature (Tsmax): --/40 °C
Activation Energy E (kJ/mol): 122.35
Technical Specifications:
Appearance: White solid
Purity: 74–76%
Moisture Content: 25% max
Applications:
1. It is one of the most commonly used radical initiators, a common initiator for acrylates, and a very important initiator for styrene and styrene copolymers. It can be used in combination with the initiator tert-butyl peroxybenzoate
(TBPB).
2. It serves as a low- to medium-temperature curing agent for unsaturated polyesters.
3. It acts as a vulcanizing agent for diene rubbers.
4. It is an important bleaching agent for flour and a decolorizing agent for vegetable oils.
Packaging and Shipping:
Our standard packaging consists of 20-kilogram corrugated cardboard boxes, each containing four 5-kilogram plastic bags. We can also supply products in packaging sizes specified by the customer; please indicate your requirements when placing an order.
Storage Precautions:
1. Store in a cool, well-ventilated area at a temperature not exceeding 30°C.
2. Keep away from sources of ignition and heat. Store separately from acids, reducing agents, flammable and combustible materials, and other reducing agents.
3. Lighting and ventilation systems in the storage area must be explosion-proof, with switches located outdoors.
4. Handle with care during transportation to prevent damage to packaging and containers. Avoid impacts and vibrations. Wear appropriate personal protective equipment during repackaging and handling operations.
5. Customers are advised to carefully read our factory’s “Material Safety Data Sheet (MSDS)” when storing, transporting, and using this product.
Product Shelf Life:
When stored and transported in strict accordance with the manufacturer’s instructions, product quality is guaranteed for three months.
Fire Protection:
1. This product may decompose violently when exposed to heat, causing a fierce fire. Small fires involving a small amount of the product should be extinguished immediately using a foam or dry powder fire extinguisher.
2. In the event of a large fire, evacuate immediately to a safe distance and use a water hose to extinguish the flames; notify the fire department for further handling.