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Lanthanum Hexaboride
Lanthanum Boride, also called Lanthanum Hexaboride or LaB6, is an inorganic chemical and refractory ceramic material. Lanthanum Boride has a high melting point of 2210°C, and is insoluble in water and hydrochloric acid. It has a low work function and one of the highest electron emissivity known, and is stable in vacuum.
Application: The principal use of lanthanum hexaboride is as a coating deposited by physical vapor deposition of hot LaB6 filament, or to manufacture hot cathodes made of LaB6 single crystals. It is also used as a size/strain standard in X-ray powder diffraction to calibrate instrumental broadening of diffraction peaks.
Formula: LaB6
Purity: 99.95% REO
CAS #: [12008-21-8]
Formula Weight: 203.78
Density: 2.61 gm/cm3
Melting Point: 2210oC
Solubility: Insoluble in Wafer, HCl
Form: -325 Mesh Powder