Boron nitride

CAS Number
10043-11-5
EC Number
233-136-6
Abbreviation
BN

What is Boron nitride?

Boron nitride (CAS 10043-11-5) is a synthetic inorganic compound produced in hexagonal and cubic crystalline forms.

Where is Boron nitride used?

  • Personal care and industrial: dry lubricant and texture modifier
  • Cosmetics: hexagonal BN as slip agent and soft-focus pigment in pressed powders
  • Foundations and eyeshadows: improves skin feel and light diffusion without adding color
  • Cutting tools and abrasive wheels: cubic BN for high-precision machining of hardened metals
  • Biotechnology and life sciences: BN-based coatings evaluated for biocompatible surfaces and thermal interface materials
  • Laboratory and diagnostic equipment
  • High-purity hexagonal grades serve as mold release agents and lubricants in high-temperature ceramic and metal processing.

Commercial specifications

  • Cosmetic-grade h-BN offered at defined particle size distributions
  • Technical and high-purity grades for industrial, electronic and advanced materials

Other Names (Synonyms)

Elbor|[BN]|Boron mononitride|Borazon|Elboron|Kubonit|Wurzin|Boron nitride (BN)|BN

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What are the physical properties of Boron nitride?

Melting Point 2967 °C (hexagonal) (polymorph) @ Press: Atm pressure
Boiling Point sublimes sl below 3000°C [MER06]
Density 2.2 g/cm³ (hexagonal crystal)
Appearance white powder
Color White
Form Powder
Water Solubility Soluble in water (slightly soluble) at 20°C, and water (soluble) at 95°C.
pH 5-8 (100g/l, H2O, 20℃)(slurry)

How is Boron nitride classified and handled safely? Learn More

Warning
GHS07· Irritant

Hazard Statements

H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P319 Get medical advice/attention if you feel unwell.

Which trade and regulatory codes apply to Boron nitride?

HS Code 28500012
UN Number 1950
Storage Class 13 - Non Combustible Solids
WGK (Germany) 3
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