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| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
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Malonyl is produced by reacting phenol with acetone. Appearance is white granular, density 1.195. pure melting point 158-159 ℃, industrial melting point 156-157 ℃, boiling point 220 ℃ (5mbar). Insoluble in water, soluble in acetone, decomposed when heated to 180℃ under normal pressure. Mainly used as a raw material for the production of Polycarbonate (Polycarbonate) plasticized products and Epoxy resin (Epoxy resin) products, made of products with light weight, transparency, impact resistance, heat-resistant and other excellent properties.
Bisphenol A (BPA) Overview
| Category | Details |
|---|---|
| Chemical Formula | C₁₅H₁₆O₂ (Diphenylolpropane) |
| Primary Uses | – Polycarbonate Plastic: Food containers, water bottles – Epoxy Resins: Coatings, composites, thermal paper – Dental Sealants: Composite fillings |
| Production | – Synthesis: Condensation of acetone and phenol – Global Output: ~8M tons/year (2025) |
| Key Properties | – Mechanical Strength: High impact resistance – Thermal Stability: Tg ~150°C – Solubility: Ethanol, acetone; insoluble in water |
| Safety Profile | – Endocrine Disruption: Mimics estrogen (EFSA TDI 4μg/kg bw/day) – Exposure Routes: Ingestion, inhalation, dermal – Regulatory Status: Restricted in baby bottles (EU, USA) |
| Health Concerns | – Developmental Effects: Linked to neural/behavioral changes in rodents – Metabolism: Rapidly glucuronidated in liver – Biomonitoring: Detectable in >90% human urine samples |
| Alternatives | – BPS/BPF: Structural analogs with similar concerns – Triclosan-free formulations – Plant-based polymers: PLA, PHA (biodegradable) |
| Environmental | – Persistence: Detected in wastewater/sediments – Bioaccumulation: Log Kow 3.4 (moderate) – Remediation: Activated carbon adsorption |
| Industry Trends | – Replacement Efforts: Non-BPA epoxy hardeners – Green Chemistry: Enzymatic synthesis routes – Regulatory Compliance: REACH Annex XVII restrictions |
Note: Critical industrial chemical with evolving safety debates. Transition to alternatives depends on balancing performance and cost in applications requiring high heat resistance and clarity.
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