Chromium(III) boride

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Chromium(III) boride
CAS number 12006-779-0
PubChem 82788
EC number 234-487-8
Jmol-3D images Image 1
Molecular formula CrB
Molar mass 62.81 g/mol
Appearance silver, ceramic material
Density 6.17 g/cm3
Melting point 2,050 to 1,950 °C (3,720 to 3,540 °F; 2,320 to 2,220 K)
Solubility in water insoluble
Crystal structure orthorhombic
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g., sodium chloride Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Chromium(III) boride is an inorganic compound with the chemical formula CrB.[1] It is used in wear resistant coatings.


  1. ^ Peshev, P.; Bliznakov, G.; Leyarovska, L. (1967). "On the preparation of some chromium, molybdenum and tungsten borides". Journal of the Less Common Metals 13 (2): 241. doi:10.1016/0022-5088(67)90188-9.