Characteristic

Boron nitride is a thermally and chemically resistant refractory compound of boron and nitrogen with the chemical formula BN. It exists in various crystalline forms that are isoelectronic to a similarly structured carbon lattice. The hexagonal form corresponding to graphite is the most stable and soft among BN polymorphs. 

Chemical formula：BN

Molar mass：24.82 g/mol

Appearance：Colorless crystals

Density：2.1 (h-BN); 3.45 (c-BN) g/cm³

Melting point：2,973 °C (5,383 °F; 3,246 K) sublimates (cBN)

Solubility in water：insoluble

Electron mobility：200 cm2/(V·s) (cBN)

Refractive index (nD)：1.8 (h-BN); 2.1 (c-BN)

Crystal structure：hexagonal, sphalerite, wurtzite

Application

Used as a lubricant and an additive to cosmetic products. Boron nitride has potential use in nanotechnology. Also used in paints, dental cements, pencil leads, xerographic process and laser printers, sealing oxygen sensors.

Boron Nitride-MSDS.pdf