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Nitride Powder

Hexagonal Boron Nitride BN Powder CAS 10043-11-5

Hexagonal boron nitride is also called white graphite. Nitrogen and boron in hexagonal boron nitride also form a hexagonal network layer, which overlaps each other to form a crystal.
Purity: 99%
Particle Size: 100nm, 500nm, 3-5um;10-20um, 20-50um,50-100
Boron Nitride Properties
Specification for Hexagonal Boron Nitride BN powder CAS 10043-11-5
by specification
100nm, 300-500nm, 3-5um,10-20um, 20-50um,
by shape irregularity or  shape

What is Hexagonal Boron Nitride BN Powder CAS 10043-11-5:

Hexagonal boron nitride (h-BN) is a compound composed of nitrogen and boron atoms and is generally considered a very important ceramic material. Boron nitride exists mainly in three crystalline forms: hexagonal boron nitridecubic boron nitride, and wurtzite boron nitride.


The hexagonal Boron Nitride formula is h-BN, an advanced synthetic ceramic that combines several useful thermal, electrical, physical, and chemical properties in one unique material.


Boron Nitride powder, also called white graphite, is a non-abrasive, white powder with a hexagonal platy crystal structure similar to graphite but a much higher oxidation resistance at 800ºC. Boron Nitride thermal conductivity is high, and BN has a low coefficient of friction, high dielectric constant, and is chemically inert. 

Boron nitride industrial powder is a pure white ceramic material with a hexagonal crystal structure similar to graphite. The boron nitride melting point is 2973 ºC. Boron nitride can withstand temperatures exceeding 2,000°C, and depending on the grade, its dielectric strength is close to 1000 volts/mil. Boron nitride is hot-pressed as billets, which can be easily processed into rods, bars, plates, and customized shapes.


Feel free to inquire about the latest price if you would like to buy Hexagonal Boron Nitride BN Powder in bulk.

Product Performance of Boron Nitride BN powder:
Boron nitride ceramic is a most simple new type of macromolecular material with both hexagonal and cubic crystal shapes. 
It is a kind of product with high temperature-resisting, corrosion-resisting, high insulating and good lubricity.
Its oxidation-resisting temperature can reach 1000°C and possesses also good lubricity in high temperature, so it is a  kind of good high-temperature solid lubricants.


Characteristics of hexagonal boron nitride

Structural characteristics: Hexagonal boron nitride has a layered structure similar to the graphite structure, in which each boron atom is connected to three nitrogen atoms, and each nitrogen atom is connected to three boron atoms. This layered structure gives hexagonal boron nitride good planar stability and high interlayer shear strength.

Physical Properties: The hexagonal boron nitride crystal structure is a hexagonal crystal system with a high hardness and melting point. Its hardness is second only to diamond, and its melting point is about 3000℃. Hexagonal boron nitride is a white or slightly yellow solid insoluble in water. It does not react with acids and alkalis but can react with oxidizing agents to produce boric acid and nitrogen at high temperatures.

Chemical Properties: Hexagonal boron nitride has high chemical stability and does not generally react with acids and bases or oxidizing agents. However, at high temperatures, hexagonal boron nitride can react with certain metal oxides to generate composite oxides, which offers the possibility of its application in ceramic materials.

How is Hexagonal Boron Nitride BN Powder CAS 10043-11-5 produced?
Hexagonal BN (hBN) is commonly referred to as "white graphite". It is an artificial ceramic made by reacting boric acid or boron oxide with nitrogen at a temperature above 1600°C. The resulting product is a smooth white powder with excellent high-temperature stability (oxidation resistance at 850°C) and lubricating properties.

Technical Parameter of Boron Nitride BN powder:
Product Name MF Purity   Particle Size Melting Point   Density 
boron nitride   BN    99% 100nm, 500nm, 3-5um,10-20um, 20-50um,50-100um  3000℃ 2.29 white

Chemical Composition of Boron Nitride BN powder:
BN MgO Na2O Fe2O3 CuO MnO
99% 0.068% 0.08% 0.06% 0.012% 0.0253%
Applications of Boron Nitride BN Powder:
Hexagonal boron nitride is white (clean appearance), non-toxic and non-conductive. It is an excellent substitute for other commonly used lubricants in metal processing (such as graphite, molybdenum disulfide, organic wax and oil). In most cases, boron nitride can greatly improve the efficiency of these applications.
Used as a high-temperature solid lubricant, extrusion antiwear additive, additive for ceramic composite production;
Used for special electrolysis and resistance materials under high-temperature conditions;
Thermal insulation materials used in aerospace;
Used as a mold release agent for metal forming and a lubricant for metal wire drawing;
Used for molten metal crucible; radiator and high-temperature insulator;
Used as a raw material for cosmetics.
Boron nitride coating is an excellent release agent, which is very suitable for protecting the surface of graphite parts from oxidation and forming a non-wetting, non-adhesive and dry lubricating layer on the surface of the parts.

Applications of hexagonal boron nitride

Coating materials: Because of its high hardness and melting point, hexagonal boron nitride is widely used in coating materials. In the field of cutting tools, hexagonal boron nitride coating can improve tools' wear resistance and service life. In addition, hexagonal boron nitride coatings are widely used in optical instruments, electronic equipment, and automobiles.

High-temperature structural materials: Hexagonal boron nitride has excellent high-temperature resistance and chemical stability, so it is widely used in high-temperature structural materials. For example, hexagonal boron nitride can manufacture high-temperature furnaces, combustion chambers, turbine blades, and other high-temperature structural components in aerospace, automotive, petrochemical, and other fields.

Synthetic polymer materials: Compounding hexagonal boron nitride with polymer materials can prepare polymer composites with excellent performance. For example, composite materials with high thermal conductivity can be prepared for heat dissipation of electronic equipment by compositing hexagonal boron nitride with polyimide.

Optical materials: hexagonal boron nitride has high transmittance and refractive index; other characteristics can be used as optical materials. In optical components, hexagonal boron nitride can be used as window materials, mirrors, etc., to improve the performance of optical systems.

Catalyst carrier: Hexagonal boron nitride has high activity and good selectivity and can be used as a catalyst carrier. For example, metal catalysts can be loaded onto hexagonal boron nitride carriers in hydrogenation reactions to improve catalyst dispersion and activity.

Electronic Packaging Materials: Because of its high thermal conductivity and good insulating properties, hexagonal boron nitride is widely used in electronic packaging. In electronic packaging, hexagonal boron nitride can be used as thermal conductive and insulating material to improve the reliability and stability of electronic equipment.

Packing & Shipping of Boron Nitride BN Powder :

We have many different kinds of packing depending on the quantity of hexagonal boron nitride BN powder.

Hexagonal boron nitride BN powder packing: vacuum packing, 100g, 500g, or 1kg/bag, 25kg/barrel, or as you request.

Hexagonal boron nitride BN powder shipping: could be shipped out by sea, by air, or by express as soon as possible once payment is received.

Hexagonal Boron Nitride powder supplier

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

If you are looking for high-quality Hexagonal Boron Nitride powder, please feel free to contact us and send an inquiry. ([email protected])

Boron Nitride Properties

Other Names Boron nitride
CAS No. 10043-11-5
Compound Formula BN
Molecular Weight 24.82
Appearance Colorless crystals
Melting Point 2973 °C
Boiling Point N/A
Density 2.1 g/cm3
Solubility in H2O insoluble
Electrical Resistivity 13 to 15 10x Ω-m
Poisson's Ratio 0.1
Specific Heat 840 to 1610 J/kg-K
Thermal Conductivity 29 to 96 W/m-K
Thermal Expansion 0.54 to 18 µm/m-K
Young's Modulus 14-60 GPa
Exact Mass 25.0124
Monoisotopic Mass 25.0124

Boron Nitride Health & Safety Information

Signal Word Warning
Hazard Statements H319-H335
Hazard Codes Xi
Risk Codes 36/37
Safety Statements 26-36
RTECS Number ED7800000
Transport Information N/A
WGK Germany 3
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