Bisphenol A (BPA) is a white crystalline solid with the molecular formula C₁₅H₁₆O₂ and CAS No. 80-05-7. As a trusted bisphenol a supplier, Thousands Chemical Store provides epoxy resin-grade and polycarbonate-grade BPA with 99%+ purity, meeting the raw material requirements of epoxy resin manufacturers, composite producers, and polymer compounders worldwide.
Bisphenol A (BPA) Overview
Bisphenol A is synthesized by the acid-catalyzed condensation of phenol with acetone. It is the primary raw material for the production of epoxy resins (via reaction with epichlorohydrin to form bisphenol A diglycidyl ether, BADGE) and polycarbonate plastics (via condensation polymerization with phosgene or diphenyl carbonate). Epoxy resins based on bisphenol a account for approximately 75% of global BPA consumption, making it one of the most strategically important aromatic chemical intermediates in the composites, coatings, and electrical insulation industries.
Key Features
- Epoxy Resin Grade, 99%+ Purity: Our bisphenol a meets epoxy resin manufacturing specifications with purity ≥99.0%, low color (APHA ≤20 in solution), and controlled melting point (155–157°C). COA and SDS provided with every shipment.
- Critical Epoxy Resin Raw Material: Bisphenol A reacts with epichlorohydrin to produce bisphenol A epoxy resins (DGEBA), the backbone of standard liquid and solid epoxy systems used in composites, coatings, adhesives, and electrical laminates.
- High Thermal Stability: BPA-based epoxy resins deliver excellent thermal and chemical resistance, making bisphenol a the preferred monomer for demanding applications in corrosion protection, aerospace composites, and high-performance coatings.
- Consistent Quality & Traceability: All bisphenol a is sourced from audited manufacturers with documented production processes. Each lot includes full chemical analysis and is traceable to origin.
- Compliance Documentation: SDS, COA, REACH registration data, and country-specific import compliance documentation are provided to streamline your procurement process.
Technical Specifications
- Chemical Name: 4,4′-(Propane-2,2-diyl)diphenol (Bisphenol A)
- CAS No.: 80-05-7
- Molecular Formula: C₁₅H₁₆O₂
- Molecular Weight: 228.29 g/mol
- Purity: ≥ 99.0% (GC)
- Appearance: White to off-white crystalline powder or prills
- Melting Point: 155–157 °C
- Color in Solution (APHA): ≤ 20
- Moisture: ≤ 0.1%
- Phenol Content: ≤ 100 ppm
- Grades Available: Epoxy resin grade, polycarbonate grade
Applications by Industry
Bisphenol A is primarily consumed in epoxy resin production, where it reacts with epichlorohydrin to form DGEBA-type liquid and solid epoxy resins. These epoxy resins are the foundation of high-performance coatings for industrial pipelines, marine structures, and concrete floors; adhesive systems for aerospace and automotive bonding; composite matrices for wind turbine blades and FRP structural components; and encapsulants for electrical and electronics applications. The corrosion resistance, adhesion, and mechanical performance of BPA-based epoxy systems are unmatched by most alternative resins.
The second major application of bisphenol a is polycarbonate plastics production. BPA-based polycarbonates are used in optical media, automotive glazing, safety helmets, and electronic housings due to their clarity, impact resistance, and dimensional stability. Specialty applications include epoxy powder coatings for can linings and pipe coatings, vinyl ester resins for corrosion-resistant FRP structures (where BPA-epoxy is reacted with methacrylic acid), and brominated BPA derivatives used as flame retardants in electronics laminates.
Packaging & Supply Information
- Standard Packaging: 25 kg kraft paper bags, 500 kg or 1,000 kg bulk bags (jumbo bags)
- MOQ: 1 pallet (500 kg); full container loads welcome
- Lead Time: 5–10 business days for standard orders
- Documents: COA, SDS, REACH registration, export compliance documents
- Shipping: Global sea freight (FCL/LCL), road transport within Asia; air freight for urgent samples
Frequently Asked Questions — Bisphenol A Supplier
- What grade of bisphenol a do you supply? We supply epoxy resin-grade BPA (≥99.0% purity, APHA ≤20) and polycarbonate-grade BPA on request. COA is provided with each batch.
- What is the minimum order quantity? MOQ is 500 kg (1 pallet of 25 kg bags). For full container loads (20MT+), please contact us for volume pricing.
- Is BPA subject to REACH restriction? BPA is listed as a Substance of Very High Concern (SVHC) under REACH. We provide full REACH compliance documentation and can advise on Safe Use Instructions. Customers are responsible for compliance in their jurisdiction.
- Do you provide a Certificate of Analysis with each shipment? Yes. Every shipment includes a lot-specific COA covering purity, melting point, color, moisture, and phenol content. SDS is also provided in your required language where available.
- Can you supply bisphenol a for epoxy resin manufacturing? Yes. Our BPA is specifically tested to epoxy resin grade specifications and is suitable for direct use in DGEBA epoxy resin synthesis.
- What are your payment and shipping terms? We accept T/T and L/C payment. Shipping terms (FOB, CIF, DAP) are negotiable depending on order volume and destination. Contact our sales team for a customized quotation.
Bisphenol A (BPA): Safety & Handling
Bisphenol A is classified as a Substance of Very High Concern (SVHC) under the EU REACH regulation due to its endocrine-disrupting properties. Workplace exposure to BPA dust should be minimized through engineering controls (local exhaust ventilation) and appropriate PPE (dust mask/respirator, gloves, safety glasses). BPA is not classified as acutely toxic but chronic occupational exposure should be managed in accordance with applicable OEL (Occupational Exposure Limit) values as specified in the Safety Data Sheet.
Store bisphenol a in sealed containers in a cool, dry, well-ventilated warehouse away from heat and ignition sources (dust can form explosive mixtures). Avoid inhalation of dust during handling and loading operations. Full safety information is available in our SDS, which can be requested from our team. For a related products, see also Epoxy & Vinyl Ester Resins and Bulk Chemical Raw Materials.
