BORON NITRIDE- ▸ Solid lubricant: High-temperature, graphite-like dry lubricant and release agent.
- ▸ Thermal management: Thermally conductive, electrically insulating filler.
- ▸ Refractory/foundry: Crucibles, coatings and high-temperature foundry use.
- ▸ Cosmetic slip: Soft-focus, slip and absorbent powder in color cosmetics.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Boron Nitride (BN, CAS 10043-11-5) is a refractory boron-nitrogen ceramic whose hexagonal form (hBN) has a layered, graphite-like structure. It is used as a high-temperature solid lubricant and release agent, a thermally conductive yet electrically insulating filler, a refractory and foundry material, and as a slip and soft-focus agent in cosmetics.
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 233-136-6
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Solutions Using This Product
Process-solution guides on this site that specify this chemistry:
- EP & Antiwear Additives for Cutting Fluids (Industrial Manufacturing)
- Solid-Film & Dry Lubricants (Graphite, Molybdenum Disulfide) (Industrial Manufacturing)
- Mold Release & Anti-Stick Agents (Industrial Manufacturing)
Frequently Asked Questions
What is boron nitride used for?
Boron nitride (BN, CAS 10043-11-5) is a boron-nitrogen ceramic. Its hexagonal form (hBN) is used as a high-temperature solid lubricant and release agent, as a thermally conductive but electrically insulating filler for thermal management, in refractory and foundry applications such as crucibles and coatings, and as a slip and soft-focus agent in color cosmetics.
What is another name for boron nitride?
Boron nitride is commonly referred to by its formula, BN, and the layered, graphite-like form is called hexagonal boron nitride or hBN (sometimes called 'white graphite' because of its graphite-like structure).
Why is boron nitride both thermally conductive and electrically insulating?
Hexagonal boron nitride has a layered structure similar to graphite, which conducts heat efficiently along its planes, but unlike graphite its electrons are localized in the boron-nitrogen bonds, so it does not conduct electricity. This combination is why hBN is used as a filler in thermal-management compounds that must remain electrically insulating.
What is the HS code for boron nitride?
Boron nitride is classified under HS heading 2850.00 (hydrides, nitrides, azides, silicides and borides). Confirm the destination-country subheading with your customs broker before import.
How is bulk boron nitride powder supplied?
RawSource supplies boron nitride powder in industrial bulk packaging for lubricant, refractory, thermal-management, and cosmetic formulators. Grades differ in particle size and purity by application, so specify your use and target volume; a CoA and SDS are provided with each shipment and pricing is quoted per order.
What is the REACH and TSCA regulatory status of Boron Nitride (BN, hBN)?
Boron Nitride (BN, hBN) (CAS 10043-11-5) is listed as Active on the U.S. EPA TSCA Inventory; its REACH registration status is not determined from the public ECHA registry.