​

1. Chemical Identity

• 化学名称： Benzoyl Peroxide

• CAS编号： 94-36-0

• Molecular Formula: C₁₄H₁₀O₄

• Molecular Weight: 242.23 g/mol

• Synonyms: Dibenzoyl Peroxide, BPO, Benzoic Peroxyanhydride​

2. Physical and Chemical Properties

3. Technical Data Sheet (TDS)

3.1. Product Specifications

3.2. Thermal Decomposition Data

4. 应用

4.1. Polymer Industry

• Initiator for Polymerization: BPO granules are extensively used to initiate the polymerization of monomers such as styrene, methyl methacrylate, and acrylates in the production of plastics, resins, and adhesives.​

4.2. Composite Materials

• Curing Agent: In unsaturated polyester and vinyl ester resins, BPO granules act as a curing agent, facilitating cross-linking during the fabrication of fiberglass-reinforced plastics.​

4.3. Rubber Industry

• Vulcanizing Agent: BPO granules serve as a vulcanizing agent and cross-linking agent for silicone rubber and fluorine rubber.​3bf12b2b2d28ef1b.en.made-in-china.com

5. Safety and Handling

5.1. Hazards Identification

• Oxidizing Agent: BPO granules are strong oxidizers and can pose fire and explosion hazards, especially when dry or in contact with combustible materials.

• Health Hazards: Exposure may cause skin and eye irritation. Inhalation of dust can irritate the respiratory tract.​

5.2. Exposure Limits

• NIOSH Recommended Exposure Limit (REL): TWA 5 mg/m³

• OSHA Permissible Exposure Limit (PEL): TWA 5 mg/m³

• Immediately Dangerous to Life or Health (IDLH): 1500 mg/m³​

5.3. Personal Protective Equipment (PPE)

• Eye Protection: Safety goggles or face shield

• Skin Protection: Protective gloves and clothing

• Respiratory Protection: Dust mask or respirator in case of inadequate ventilation​

5.4. First Aid Measures

• Inhalation: Move to fresh air. Seek medical attention if symptoms persist.

• Skin Contact: Wash with soap and water. Remove contaminated clothing.

• Eye Contact: Rinse cautiously with water for several minutes. Seek medical advice.

• Ingestion: Do not induce vomiting. Seek immediate medical attention.​

6. Storage and Stability

• 储存条件： Store in a cool, dry, well-ventilated area away from heat sources and direct sunlight.

• Temperature: Maintain storage temperature below 35 °C.

• 包装： Typically available in 20 kg or 25 kg containers with inner polyethylene bags and outer fiber drums or cartons.

• Stability: BPO granules are stable under recommended storage conditions but decompose upon heating, shock, or friction.​

7. Regulatory Information

• UN Number: 3104 (for BPO with ≥52% content)

• Hazard Class: 5.2 (Organic Peroxides)

• Packing Group: II

• Regulatory Listings: BPO is listed under various regulatory frameworks, including REACH, TSCA, and OSHA.​

8. Environmental Impact

• Ecotoxicity: BPO is harmful to aquatic life with long-lasting effects.

• Degradability: It decomposes into benzoic acid and oxygen, which can contribute to environmental oxygen demand.