[Chemical Knowledge]：The nature, use, upstream and downstream raw materials, storage methods, price of tetrabromobisphenol A.

Chemical properties of 1. tetrabromobisphenol A

Tetrabromobisphenol A(Tetrabromobisphenol A, referred to as TBBPA) is a brominated organic compound with a chemical formula of C15H12Br4O2 and a molecular weight of 543.87. The appearance is white or light yellow crystalline powder with a high melting point (180-184°C). It has good thermal stability and flame retardant properties, and contains two benzene rings and four bromine atoms in the chemical structure, which makes it exhibit excellent flame retardant effect in polymers. Due to its high bromine content, TBBPA can release hydrogen bromide when exposed to heat or combustion, which acts as a flame retardant, thereby reducing the burning speed and flame spread of the material.

Main uses of 2. tetrabromobisphenol A

tetrabromobisphenol A is widely used in electronic appliances, building materials, textiles and transportation, mainly as a flame retardant and intermediate. The following is its specific application:

1. electrical and electronic field: TBBPA is mainly used for flame retardant treatment of printed circuit boards and plastic shells. Printed circuit boards are the core components of electronic equipment. The use of TBBPA can improve its heat resistance and flame retardancy, thereby extending the service life of electronic equipment and improving its safety.

2. Building Materials: In building materials, TBBPA is widely used in flame retardant foam plastics, fiberboard and other products. These materials are widely used in construction projects, and the use of TBBPA can effectively improve the fire performance of buildings.

3. Textiles: TBBPA is used for flame retardant treatment of textiles, especially industrial fabrics and household fabrics that require high flame retardant properties. Textiles treated with TBBPA are not only effectively flame retardant, but also maintain the softness and durability of the fabric.

4. means of transport in vehicles such as automobiles and airplanes, TBBPA is used as a flame retardant in interior materials and cables, which can significantly improve the fire resistance of these components and ensure the safety of passengers.

3. of Upstream and Downstream Raw Materials for Tetrabromobisphenol A

1. upstream raw materials:

• phenol phenol is one of the basic raw materials for the production of bisphenol A. Bisphenol A is prepared by the condensation reaction of phenol with acetone in the presence of an acidic catalyst. The supply and price of phenol directly affect the production cost of TBBPA.
• Bromine bromine is one of the key raw materials of TBBPA. TBBPA is produced by the reaction of bisphenol A and bromine, so whether the supply of bromine is sufficient or not has an important impact on the production of TBBPA. Bromine is mainly extracted from seawater and its price fluctuates greatly.

1. Downstream Products:

• printed Circuit Board (PCB) TBBPA is used as the main flame retardant in PCB manufacturing, which can significantly improve the heat resistance and flame retardant properties of PCB.
• Plastic and polymer materials: TBBPA is used for flame retardant treatment of a variety of plastic and polymer materials, such as ABS resin, epoxy resin, etc., to improve the safety and durability of these materials.

Storage method of 4. tetrabromobisphenol A

tetrabromobisphenol A is a hazardous chemical, and its storage and transportation require strict management and control. The following are its main storage methods and considerations:

1. storage Environment: TBBPA should be stored in a cool, well-ventilated warehouse, away from direct sunlight and high temperature environment. The warehouse should be kept dry, avoid moisture, to prevent TBBPA moisture caking.

2. Packaging Requirements: TBBPA should be packed in well-sealed bags or barrels, and the packaging materials should have good moisture resistance. Usually use plastic bag lined woven bag or paper barrel packaging, to prevent the outside moisture and pollutants.

3. Fire and explosion prevention measures: Because TBBPA has flame retardant properties, it may still release harmful gases at high temperatures. Therefore, the storage environment should be equipped with necessary fire and explosion-proof equipment to ensure that the ventilation and fire-fighting facilities in the warehouse are complete.

4. Safety identification clear chemical safety signs should be posted in the warehouse, and necessary safety protection equipment, such as protective gloves, protective glasses, etc., should be provided to ensure the safety of operators.

5. Management specification: When storing and using TBBPA, you should strictly abide by the relevant safety management regulations and operating specifications, regularly check the storage environment and the integrity of the packaging, and deal with damage and leakage in time.

5. Conclusion

tetrabromobisphenol A, as an important flame retardant, has a wide range of applications in the fields of electronic appliances, building materials, textiles and transportation. Its excellent chemical properties make it an ideal flame retardant for a variety of materials. The production of TBBPA relies on upstream raw materials such as phenol and bromine, while its main downstream products include printed circuit boards and various flame retardant plastics. When storing and using TBBPA, it is necessary to take strict fire and explosion prevention measures and safety management standards to ensure the safety of operators and the protection of the environment. On the whole, with the continuous improvement of safety and environmental protection requirements, the market demand for TBBPA will continue to grow, and its application prospects will be broader.