High purity hexagonal boron nitride powder cas 10043-11-5 Boron nitride(BN 99%)

Short Description:

Chemical Name: Boron Nitride

Synonyms: Hexagonal boron nitride powder

CAS : 10043-11-5

HS CODE: 2850001900

Molecular formula: BN

Molecular weight: 24.8

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Product Description

Boron nitride is made up of nitrogen and boron atoms in the crystal, the crystal structure can be divided into: hexagonal boron nitride (HBN), dense rows of hexagonal boron nitride and cubic boron nitride, the crystal structure of hexagonal boron nitride have similar graphite layer structure, loose, lubrication, easy absorption of moisture, light and other traits of white powder, say again so "white graphite. Theoretical density: 2.27g/ cm3, specific gravity: 2.43, mossberg hardness: 2.

Hexagonal boron nitride is has good electrical insulation, thermal conductivity, chemical stability, no obvious melting point, heat resistant up to 3000 ℃ in 0.1 MPA nitrogen, in a neutral reduction atmosphere, heat resistant up to 2000 ℃, the nitrogen and argon is used in the temperature can reach 2800 ℃, poor stability in oxygen atmosphere, temperature below 1000 ℃. The expansion coefficient of boron nitride is equivalent to that of quartz, but the thermal conductivity is ten times higher than thatof quartz. At high temperature also has good lubricity, is a good high temperature solid lubricant, has a strong neutron absorption capacity, chemical stability, almost all molten metals have chemical inertness.

Hexagonal boron nitride insoluble in cold water, water boiling hydrolysis is very slow and produce a small amount of boric acid and ammonia, and weak acid and strong base at room temperature are not reactive, slightly soluble in hot acid, with molten sodium hydroxide, potassium hydroxide treatment can be decomposed. It has good corrosion resistance to all kinds of inorganic acid, alkali, salt solution and organic solvent.


1, boron nitride is a non-toxic, high temperature resistance, corrosion resistance, high thermal

conductivity, high insulation, excellent lubrication performance of the material.

2. It is not only an electrical insulator but also a thermal conductor, a special electrolysis and
resistance material at high temperature, an insulator of high voltage and high frequency electricity
and plasma arc.

3, can be used as semiconductor solid-phase doped material, anti-oxidation or water-resistant grease.

4. High temperature lubricant and mold release agent, boron nitride powder can also be used as
anti-adhesion agent for glass beads, mold release agent for glass and metal forming.

5. The super-hard material processed by boron nitride can be made into high-speed cutting tools
and drilling bits for geological exploration and oil drilling.

6. Structural materials of atomic reactors, nozzles of aircraft and rocket engines, packaging materials
to prevent neutron radiation, and thermal shielding materials in aerospace.

7, non-toxic and harmless and lubricity, can be used as a cosmetic filler.

8. With the participation of catalyst, it can be converted into cubic boron nitride as hard as diamond
after high temperature and pressure treatment.

9, do a variety of capacitor film aluminum plating, image tube aluminum plating, aluminum display,
such as evaporation boat.

10, transistor heat seal desiccant and plastic resin and other polymer additives.

11, all kinds of laser anti-counterfeiting aluminum plating, trademark bronzing materials, all kinds of cigarette labels, beer labels, packaging boxes, cigarette packaging boxes aluminum plating and so on.


Product Specification Purity % Hydrogen peroxide insoluble mater % Total oxygen content % Moisture % Granularity (D50) um Tap density, g/cm3
BN-B 99 ≤0.5 ≤0.7 ≤0.5 1 ~ 2 0.60
BN-C 99 ≤0.5 ≤0.4 ≤0.5 5 ~ 10 0.37
BN-E 99 ≤0.5 ≤0.3 ≤0.5 3 ~ 5 0.45
BN-N 99 ≤0.5 ≤0.3 ≤0.5 10 ~ 20 0.63
BN-S 99 ≤0.5 ≤0.3 ≤0.5 20 ~ 30 0.86
BN-SS 99 ≤0.5 ≤0.2 ≤0.5 30 ~ 40 0.36

Boron Nitride


1kg/bag, aluminum foil bag packaging, 10kg/carton, or 25kg/bag

Or can be customized according to customer needs

Storage should be at cool, dry and ventilate.

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