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BN1508 Hexagonal Boron Nitride Powder (h-BN Powder) (CAS No. 10043-11-5)

Catalog No. BN1508
CAS Number 10043-11-5
Purity ≥99%, or customized
Chemical Formula BN
Form White Powder
Particle Size 1-3 μm, or customized
Synonyms Boron Nitride Powder, BN Powder

Stanford Advanced Materials is a trusted global supplier of high-performance ceramic materials. Our h-Hexagonal Boron Nitride Powder (HBN Powder) features high purity, excellent thermal stability, and electrical insulation, making it ideal for electronics, high-temperature metallurgy, and advanced coatings.

Related Products: Boron Nitride Blank, Boron Nitride Plate, Boron Nitride Tube.

SEE Full Boron Nitride Product List >>

The estimated delivery time of 7 to 14 days applies to standard powders. For other products, delivery times may vary.

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Boron Nitride Powder
Boron Nitride Powder
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CAS Number
10043-11-5
Purity
≥99%, or customized
Chemical Formula
BN
Form
White Powder
Particle Size
1-3 μm, or customized
Synonyms
Boron Nitride Powder, BN Powder
 
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CAS Number
12033-89-5
Chemical Formula
Si3N4
Particle Size
Customized
Appearance
Grayish-white powder
Purity
≥99%
Synonyms
Silicon Nitride Powder, Si3N4 Powder
 
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Purity
99.99%/ as required
CAS Number
24304-00-5
Form
White Powder
Thermal Conductivity
~150 W/m·K
Particle Size
D50 = 1-5 µm (customizable from 0.5 µm to 20 µm)
Synonyms
Aluminum Nitride Powder, AlN Powder
 
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Purity
C: 99.0-99.95 %
Particle Size
5-15 μm, or customized
Form
Spherical Powder

FAQ

What are the benefits of different boron nitride particle shapes, like platelets versus spherical agglomerates?

The choice depends on your application. Platelet-shaped particles align during processing, providing excellent in-plane thermal conductivity and are ideal for thin coatings or bond lines where larger agglomerates cannot fit. In contrast, spherical agglomerates are composed of randomly oriented platelets, which help improve thermal conductivity uniformly in all directions (isotropically). These spherical grades also offer superior flowability and packing density, making them easier to process.

How do I select the right particle size for my application?

A key rule is to ensure the largest particle size does not exceed the final product's thinnest cross-section, such as a coating thickness. Many formulators achieve optimal performance and particle packing by blending two or more powder sizes with different distributions to create an efficient thermal pathway within the composite matrix.

Why is my mixing process important for selecting a boron nitride grade?

Your mixing shear forces directly determine the suitable grade. Robust, single-crystal platelet grades can withstand high-shear processes like extrusion. Conversely, spherical and agglomerated grades, which are held together without binders, are designed for low to medium-shear mixing and may break apart under high-shear conditions, altering their properties.

What factors should I consider when using boron nitride to improve thermal conductivity?

For thermal management applications, focus on three key factors: the particle size tolerance of your resin system or bond line thickness, whether you need to improve thermal conductivity in a specific plane or uniformly, and the shear forces involved in your mixing and dispersion process.

How do different grades affect cosmetic formulations?

The primary differences are in particle size and morphology, which impact the visual appearance. While all our cosmetic grades are high-purity and compliant with global heavy metal regulations, finer powders tend to give a matte finish. In contrast, larger platelets can create a more translucent or shimmering effect, as individual crystals are transparent.

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    Size

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