Benzoyl Peroxide (BPO) is a white, crystalline powder known for its strong oxidizing properties. It serves as a free radical initiator in polymerization processes and is utilized across various industries, including plastics, pharmaceuticals, and cosmetics.
Pengenalan kinerja produk
2. Chemical Identity
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Nama Kimia: Benzoyl Peroxide
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Nomor CAS: 94-36-0
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Molecular Formula: C₁₄H₁₀O₄
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Molecular Weight: 242.23 g/mol
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Synonyms: Dibenzoyl Peroxide, BPO, Benzoic Peroxyanhydride
3. Physical and Chemical Properties
| Properti | Nilai |
|---|---|
| Penampilan | White crystalline powder |
| Odor | Odorless |
| Titik lebur | 103–106 °C |
| Boiling Point | Decomposes before boiling |
| Kepadatan | 1.16 g/cm³ at 25 °C |
| Vapor Pressure | 0.009 Pa at 25 °C |
| Solubility in Water | Insoluble |
| Solubility in Organic Solvents | Soluble in acetone, benzene, chloroform; slightly soluble in ethanol |
| Titik nyala | >110 °C |
| Decomposition Temperature | 133 °C (1-minute half-life) |
| Activation Energy | ~125.6 kJ/mol |
| Theoretical Active Oxygen Content | 6.62% |
4. Technical Data Sheet (TDS)
4.1. Product Specifications
| Parameter | Spesifikasi |
|---|---|
| Assay (BPO Content) | 75.00–78.00% |
| Water Content | 21.00–25.00% |
| Free Chloride | ≤0.1% |
| Free Acid (as Benzoic Acid) | ≤0.5% |
| Penampilan | White granular powder |
| Bulk Density | 500–600 kg/m³ |
4.2. Thermal Decomposition Data
| Half-Life | Suhu |
|---|---|
| 10 hours | 72–73 °C |
| 1 hour | 92 °C |
| 1 minute | 131 °C |
5. Aplikasi
5.1. Polymer Industry
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Initiator for Polymerization: BPO is widely used to initiate the polymerization of monomers like styrene, methyl methacrylate, and acrylates in the production of plastics, resins, and adhesives.
5.2. Composite Materials
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Curing Agent: In unsaturated polyester and vinyl ester resins, BPO acts as a curing agent, facilitating cross-linking during the fabrication of fiberglass-reinforced plastics.
5.3. Pharmaceuticals and Cosmetics
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Acne Treatment: BPO is a common active ingredient in topical acne medications due to its antibacterial properties.
5.4. Food Industry
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Bleaching Agent: BPO is employed to bleach flour, whey, and cheese products, improving their appearance.
6. Safety and Handling
6.1. Hazards Identification
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Oxidizing Agent: BPO is a strong oxidizer and can pose fire and explosion hazards, especially when dry or in contact with combustible materials.
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Health Hazards: Exposure may cause skin and eye irritation. Inhalation of dust can irritate the respiratory tract.
6.2. Exposure Limits
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NIOSH Recommended Exposure Limit (REL): TWA 5 mg/m³
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OSHA Permissible Exposure Limit (PEL): TWA 5 mg/m³
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Immediately Dangerous to Life or Health (IDLH): 1500 mg/m³
6.3. Personal Protective Equipment (PPE)
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Eye Protection: Safety goggles or face shield
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Skin Protection: Protective gloves and clothing
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Respiratory Protection: Dust mask or respirator in case of inadequate ventilation
6.4. First Aid Measures
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Inhalation: Move to fresh air. Seek medical attention if symptoms persist.
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Skin Contact: Wash with soap and water. Remove contaminated clothing.
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Eye Contact: Rinse cautiously with water for several minutes. Seek medical advice.
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Ingestion: Do not induce vomiting. Seek immediate medical attention.
7. Storage and Stability
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Kondisi penyimpanan: Store in a cool, dry, well-ventilated area away from heat sources and direct sunlight.
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Temperature: Maintain storage temperature below 30 °C.
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Kemasan: Typically available in 20 kg or 25 kg containers with inner polyethylene bags and outer fiber drums or cartons.
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Stability: BPO is stable under recommended storage conditions but decomposes upon heating, shock, or friction.
8. Regulatory Information
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UN Number: 3104 (for BPO with ≥52% content)
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Hazard Class: 5.2 (Organic Peroxides)
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Packing Group: II
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Regulatory Listings: BPO is listed under various regulatory frameworks, including REACH, TSCA, and OSHA.
9. Environmental Impact
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Ecotoxicity: BPO is harmful to aquatic life with long-lasting effects.
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Degradability: It decomposes into benzoic acid and oxygen, which can contribute to environmental oxygen demand.
10. Kesimpulan
Benzoyl Peroxide powder is a versatile chemical with applications spanning multiple industries. Its efficacy as a polymerization initiator and curing agent makes it invaluable in manufacturing processes. However, due to its reactive nature, strict adherence to safety guidelines is imperative to ensure safe handling and storage.
Bubuk BPO
Seri :
Produk Proksi >aplikasi
Polymer Industry,Composite Materials,Pharmaceuticals and Cosmetics,Food Industry
Nama merk :
komposit TF
Nama Produk :
Bubuk BPO
Pertanyaan Umum
Q :
Apa kegunaan pasta BPO dalam industri fiberglass?
A :
Pasta BPO (Benzoyl Peroxide) terutama digunakan sebagai inisiator pengerasan untuk resin poliester dan vinil ester tak jenuh. Pasta ini membantu memulai proses polimerisasi dalam berbagai metode pembuatan fiberglass seperti hand lay-up, spray-up, pultrusion, casting, dan filament winding.
Q :
Mengapa BPO digunakan dalam bentuk pasta dan bukan bubuk?
A :
Lebih aman (risiko ledakan atau kebakaran lebih rendah) Lebih mudah ditangani dan dicampur Lebih sedikit debu Lebih stabil selama penyimpanan dan pengangkutan
Q :
Bisakah pasta BPO digunakan sendiri untuk proses pengeringan?
A :
Tidak. Pasta BPO membutuhkan promotor/akselerator—yang paling umum adalah kobalt oktoat—agar dapat terurai dengan benar dan menghasilkan radikal bebas untuk proses pengerasan.
Q :
Berapakah dosis tipikal pasta BPO dalam produksi fiberglass?
A :
Dosis standar biasanya 1,0% – 2,5% berdasarkan berat resin, tergantung pada jenis resin, kecepatan pengerasan yang dibutuhkan, dan suhu.
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