What is Boron Nitride Powder CAS 10043-11-5?

Boron Nitride Powder is an inorganic boron-nitrogen compound with molecular formula BN, molecular weight 24.82, and EC number 233-136-6. It is also called boron mononitride or h-BN, and is normally supplied as a white or off-white industrial or ceramic-grade powder.

What is the difference between hexagonal and cubic boron nitride?

Hexagonal boron nitride has a graphite-like layered structure and is commonly chosen for thermal conductivity, electrical insulation, lubrication, release, and protective coating applications. Cubic boron nitride has a different crystal structure, higher density of about 3.45 g/cm3, and is more relevant to abrasive or specialty ceramic uses.

What are the main industrial applications of Boron Nitride Powder?

It is used in thermal-management fillers and electrically insulating composites, ceramic and refractory processing, high-temperature solid lubrication, protective coatings, and polymer or rubber modification. Hexagonal boron nitride is usually the relevant form for these thermal, insulating, lubricant, and release uses.

Which specifications should be checked for thermal-management or ceramic-grade BN powder?

Confirm crystal phase, purity or BN content, oxygen or B2O3 content, particle size distribution, specific surface area, tap density, and any surface treatment. Thermal conductivity and electrical resistivity may also be relevant for electronic, thermal-interface, or insulating formulations.

Boron Nitride Powder (BN) CAS 10043-11-5

Boron nitride powder (BN), also called hexagonal boron nitride or h-BN, CAS 10043-11-5, is a white inorganic boron-nitrogen powder supplied for thermal, ceramic, lubrication, and composite applications. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 10043-11-5
Synonyms: Boron nitride; BN; Hexagonal boron nitride*; Boron nitride powder
Einecs: 233-136-6
Molecular Formula: BN
Grade: Industrial grade; Ceramic grade; Customized according to application requirements
Package: Standard packaging; packed in bags / drums / cartons as applicable; customized packaging available upon request

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Product Description

Boron Nitride Powder (BN) CAS 10043-11-5 is an inorganic boron-nitrogen compound with the molecular formula BN and EINECS 233-136-6.

Synonyms: Boron nitride; BN; Hexagonal boron nitride (h-BN); Boron nitride powder.

CAS: 10043-11-5.

Molecular formula: BN.

It is a white or off-white industrial or ceramic-grade powder with a molecular weight of about 24.82.

Hexagonal boron nitride has a graphite-like layered structure commonly used for thermal conductivity, electrical insulation, lubrication, release, and protective coatings.

Cubic boron nitride has a different crystal structure and is more relevant to abrasive or specialty ceramic uses.

In thermal-management and insulating systems it is used as a filler where particle size, morphology, and formulation compatibility matter.

In ceramic and refractory processing it is used as a functional inorganic material.

In lubrication and release-related systems it is used for high-temperature stability and solid lubrication.

In polymer, rubber, or composite modification it balances thermal conductivity and electrical insulation in formulation design.

It is also used in specialty industrial formulations subject to grade confirmation, purity requirements, and application validation.

Store in tightly closed, moisture-protective packaging in a dry, cool, well-ventilated area.

Avoid unnecessary dust formation, moisture pickup, and contact with strong oxidizers.

Confirm package, net weight, lot traceability, and transport requirements before dispatch, and follow the current SDS.

Every batch is checked for crystal phase, purity/BN content, oxygen or B2O3 content, particle size, specific surface area, and tap density, with COA/TDS/SDS supplied per grade.

Confirm crystal phase, BN content, particle size, surface area, packaging, and grade as required.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Boron Nitride Powder CAS 10043-11-5?

A: Boron Nitride Powder is an inorganic boron-nitrogen compound with molecular formula BN, molecular weight 24.82, and EC number 233-136-6. It is also called boron mononitride or h-BN, and is normally supplied as a white or off-white industrial or ceramic-grade powder.
Q:
What is the difference between hexagonal and cubic boron nitride?

A: Hexagonal boron nitride has a graphite-like layered structure and is commonly chosen for thermal conductivity, electrical insulation, lubrication, release, and protective coating applications. Cubic boron nitride has a different crystal structure, higher density of about 3.45 g/cm3, and is more relevant to abrasive or specialty ceramic uses.
Q:
What are the main industrial applications of Boron Nitride Powder?

A: It is used in thermal-management fillers and electrically insulating composites, ceramic and refractory processing, high-temperature solid lubrication, protective coatings, and polymer or rubber modification. Hexagonal boron nitride is usually the relevant form for these thermal, insulating, lubricant, and release uses.
Q:
Which specifications should be checked for thermal-management or ceramic-grade BN powder?

A: Confirm crystal phase, purity or BN content, oxygen or B2O3 content, particle size distribution, specific surface area, tap density, and any surface treatment. Thermal conductivity and electrical resistivity may also be relevant for electronic, thermal-interface, or insulating formulations.
Q:
How should Boron Nitride Powder be stored and handled?

A: Store it in tightly closed, moisture-protective packaging in a dry, cool, well-ventilated area. Avoid unnecessary dust formation, moisture pickup, and contact with strong oxidizers, and confirm the offered package, net weight, lot traceability, and transport requirements before dispatch.

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