Boron nitride CAS# 10043-11-5
Graphite-Like Layered Structure with High Stability: Boron nitride has a flat hexagonal crystal structure similar to graphite, providing excellent structural stability and strong in-plane bonding while maintaining weak interlayer forces for easy lubrication and processing.
Isoelectronic with Carbon Allotropes: Its electronic structure is comparable to carbon materials, enabling it to form similar allotropes while offering distinct physical and chemical properties suitable for advanced material applications.
Low Interlayer Bonding for Superior Lubricity: The layers are held together only by van der Waals forces, with no strong boron–nitrogen bonds between layers, giving boron nitride excellent lubricating performance and easy shear behavior.
Versatile Crystal Forms for Diverse Applications: In addition to the hexagonal layered form, boron nitride is also available in a spherical structure, expanding its usability across different industrial and engineering applications.
Boron Nitride CAS#10043-11-5
Boron nitride is a material in which nitrogen, having one extra electron compared with carbon, enables the formation of structures that are isoelectronic with carbon allotropes.
It is an inorganic compound featuring a flat, hexagonal crystal structure similar to graphite, except that the carbon atoms are replaced by alternating boron and nitrogen atoms. These boron and nitrogen atoms connect to form interlocking hexagonal rings composed of three boron atoms and three nitrogen atoms, while the layers are held together by van der Waals forces. There is no direct boron–nitrogen bonding between the layers. The B–N bond length is 1.466 Å, and the interlayer spacing is 3.331 Å. In addition, a spherical form with a hexagonal crystal structure is also available.
Boron nitride Chemical Properties
| Melting point | 2700℃ |
| Boiling point | sublimes sl below 3000℃ [MER06] |
| bulk density | 120kg/m3 |
| density | 0.9-1.1 g/mL at 25 °C |
| storage temp. | no restrictions. |
| solubility | insoluble in H2O, acid solutions |
| form | Powder |
| color | White |
| Specific Gravity | 3.48 |
| PH | 5-8 (100g/l, H2O, 20℃)(slurry) |
| Resistivity | 10*19 (ρ/μΩ.cm) |
| Water Solubility | Soluble in water (slightly soluble) at 20°C, and water (soluble) at 95°C. |
| Sensitive | Hygroscopic |
| Crystal Structure | Hexagonal |
| Merck | 141,346 |
| Stability | Stable. Incompatible with oxidizing agents, water. |
| Cosmetics Ingredients Functions | SLIP MODIFIER |
| BULKING | |
| CAS DataBase Reference | 10043-11-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Boron nitride(10043-11-5) |
| EPA Substance Registry System | Boron nitride (BN) (10043-11-5) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37 |
| Safety Statements | 26-36 |
| RIDADR | UN1950 |
| WGK Germany | 3 |
| RTECS | ED7800000 |
| TSCA | Yes |
| HS Code | 2850 00 20 |
| HazardClass | 2.1 |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rat > 2000 mg/kg |
Product Application of Boron Nitride CAS#10043-11-5
Boron nitride is a material in which nitrogen, having one more electron than carbon, allows it to form structures that are isoelectronic with carbon allotropes. It is also utilized in the production of alloys, as well as in semiconductors, nuclear reactors, and lubricants.
Hexagonal boron nitride serves as an electrical insulator and is used for thermocouple protection sheaths, crucibles, and linings for reaction vessels. It is applied as a coating for refractory molds in glass forming and in the superplastic forming of titanium. In addition, it can be blended into ceramics, alloys, resins, plastics, and rubber to impart self-lubricating properties. Hexagonal boron nitride is further used in the formulation of high-temperature coatings and paints, and it also functions as a substrate for semiconductors, lens coatings, and transparent windows.
