Hexagonal boron nitride

Product Introduction

Executive standard: Q/TY · J08.34-2022

Chinese alias: white graphite, boron nitride

English name: Boron nitride

CAS RN: 0043-11-5

Appearance: White powder

Physical and chemical properties

1. Molecular formula: BN

2. Molecular weight: 24.81 (according to the 1979 International Atomic Weight)

3. Structural type: Structural type

4. Melting point: 3000 ℃ (stable in inert gas)

5. The Mohs hardness is 1-2.

6. Theoretical density: 2.29g/cm3.

7. Solubility: Slightly soluble in hot acids, insoluble in cold water.

8. Performance: Hexagonal boron nitride has good electrical insulation, thermal conductivity, chemical corrosion resistance, and lubrication, as well as strong neutron absorption ability. It is relatively stable for almost all organic solvents and corrosive chemicals; It is chemically inert to almost all molten metals. Under 1000 ℃ in the air, various physical and chemical properties remain basically unchanged; The temperature remains stable at 3000 ℃ when used in nitrogen or argon gas. Hexagonal boron nitride powder is formed into white blocks after hot pressing and sintering, which are easy to machine and can withstand temperatures up to 2000 ℃.

Product application:

1. Heat sealing desiccants for transistors and high thermal conductivity insulation additives for polymers such as plastic resin rubber coatings;

2. High thermal conductivity insulation adhesives, thermal conductivity plastics, thermal conductivity films and other high thermal conductivity insulation fillers;

3. Drill bits, grinding materials, cutting tools;

4. High temperature lubricants and release agents;

5. Insulators for high-voltage and high-frequency electricity and plasma arcs, coatings for automatic welding of high-temperature resistant supports, materials for high-frequency induction furnaces, solid phase additives for semiconductors, structural materials for atomic reactors, packaging materials for preventing neutron radiation, transmission windows for radars, media for radar antennas, and components of rocket engines.

Packaging introduction:

1. Customer specified sample testing packaging (<1kg/bag)

2. Sample product packaging (1kg/bag)

3. Conventional product packaging (1kg/2kg/5kg/10kg)

Remarks: Inner: Transparent PE bag Outer: Aluminum foil bag vacuum. Packaging can be specified according to customer requirements.

Product packaging:

This product is packed with inert gas and sealed for storage in a dry and cool environment. It should not be exposed to the air to prevent oxidation and aggregation caused by moisture, which may affect its dispersibility and effectiveness; The packaging quantity can be provided according to customer requirements and divided into different packages.