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    HomeProductsBasic & Fine ChemicalsInorganic ChemicalsBoron Nitride CAS 10043-11-5
    • Boron Nitride CAS 10043-11-5

    Boron Nitride CAS 10043-11-5

    Boron Nitride (CAS 10043-11-5) is an advanced synthetic ceramic material utilizing its hexagonal crystal structure to provide exceptional thermal conductivity and electrical insulation. Chemically identified as Hexagonal Boron Nitride (h-BN) or "White Graphite," this soft, white powder functions as a superior high-temperature lubricant and a thermally conductive filler in electronic thermal management materials. As a chemically inert Inorganic nitride, it is extensively integrated into cosmetic formulations for its silky texture ("soft focus" effect) and into metallurgy as a mold release agent where graphite would react. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific particle sizes (e.g., 1-2 microns for cosmetics, 10-30 microns for thermal fillers). Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

    • CAS: 10043-11-5
    • Synonyms: Hexagonal Boron Nitride, h-BN, White Graphite, Boron mononitride, BN powder
    • Einecs: 233-136-6
    • Grade: Industrial Grade / Cosmetic Grade / Electronic Grade
    • Package: 10kg/20kg Fiber Drum or Carton box with inner PE bags
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    Product Description

    Hexagonal Boron Nitride (h-BN) is a advanced ceramic material that combines the properties of high thermal conductivity, high electrical resistance, and excellent lubricity. Unlike graphite, it is white and an electrical insulator.

    Our Boron Nitride powder is chemically inert, non-toxic, and stable at high temperatures (up to 900°C in air and 2000°C in inert atmosphere). It is widely used as a solid lubricant, a release agent for metal casting, and a thermal conductive filler in electronic materials. Our factory offers various particle sizes (D50 from 1μm to 30μm) to suit different application needs.

    1 Physicochemical Properties
    2 Applications
    3 Storage Conditions
    4 Safety Precautions

    Physicochemical Properties

    The following specifications reflect our standard High-Purity h-BN export grade:

    PropertySpecification / Value
    AppearancePure White Fluffy Powder
    Crystal StructureHexagonal (Graphite-like)
    Purity (BN Content)≥ 98.0% – 99.5%
    Free Boron Oxide (B2O3)≤ 0.5% (Low moisture absorption)
    Particle Size (D50)Customizable: 1-2μm, 3-5μm, 10-15μm, ~30μm
    Tap Density0.2 – 0.5 g/cm³ (Depending on particle size)
    True Density~2.27 g/cm³
    Melting Point~3000°C (Sublimates)
    Thermal ConductivityHigh (Used for heat dissipation)
    Electrical Resistivity> 10^14 Ω·cm (Excellent Insulator)
    SolubilityInsoluble in water, acid, and ethanol

    Applications

    Boron Nitride is a critical material in advanced manufacturing and cosmetics:

    1. High-Temperature Lubricants: Used as an additive in greases and oils for extreme pressure and high-heat environments.
    2. Mold Release Agent: Applied in metal casting (aluminum, magnesium, zinc) and glass molding to prevent sticking.
    3. Cosmetics: Used in makeup (foundation, lipstick) as a slip agent to provide a silky texture and high opacity (“soft focus” effect).
    4. Thermal Management: Used as a thermally conductive but electrically insulating filler in thermal pads, silicone sheets, and epoxy resins for electronics.
    5. Ceramics: Sintered to produce evaporation boats and ceramic parts for semiconductor processing.
    6. Coatings: Used in anti-corrosion and anti-stick coatings for industrial machinery.

    Storage Conditions

    • Moisture Control: Although our product has low B2O3, Boron Nitride can slightly absorb moisture over time. Store in a strictly dry environment.
    • Sealing: Keep container tightly sealed immediately after use.
    • Temperature: Store in a cool, well-ventilated warehouse away from direct sunlight.
    • Stacking: Do not stack too high to prevent package damage.

    Safety Precautions

    • Inhalation: Boron Nitride is considered a “nuisance dust.” Avoid breathing dust. Use a NIOSH-approved dust mask or respirator during handling, especially when transferring powder.
    • Ventilation: Ensure adequate local exhaust ventilation in the working area.
    • Skin & Eyes: It is generally non-irritating, but mechanical irritation from powder is possible. Wear safety goggles and gloves.
    • Fire: The product is non-combustible and fire-retardant.

    FAQ - Technical & Supply Chain

    • Q:

      How is Boron Nitride CAS 10043-11-5 chemically distinguished from Graphite?

      A: Boron Nitride (CAS 10043-11-5) is isostructural to graphite (layered hexagonal lattice) and shares its lubricity, but it is chemically distinct as an electrical insulator (whereas graphite conducts electricity) and is white in color, hence the name "White Graphite."
    • Q:

      Is this material suitable for cosmetic applications?

      A: Yes, Cosmetic Grade h-BN is widely applied in foundations, powders, and creams as a slip agent and mattifier, offering superior adherence, oil absorption, and a luxurious silky skin feel compared to talc or mica.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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    Tags:

    Ceramic Material Inorganic Nitride Lubricant Additive Thermal Conductive Filler

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