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Characteristic
Lanthanum hexaboride (LaB6, also called lanthanum boride and LaB) is an inorganic chemical, a boride of lanthanum. It is a refractory ceramic material that has a melting point of 2210 °C, and is insoluble in water and hydrochloric acid.
Chemical formula：LaB6
Molar mass： 203.78 g/mol
Appearance： intense purple violet
Density： 4.72 g/cm3
Melting point： 2,210 °C (4,010 °F; 2,480 K)
Solubility in water：insoluble
Crystal structure：Cubic
Application
The principal use of lanthanum hexaboride is in hot cathodes, either as a single crystal or as a coating deposited by physical vapor deposition.
LaB6 is also used as a size/strain standard in X-ray powder diffraction to calibrate instrumental broadening of diffraction peaks.
LaB6 is a superconductor with a relatively low transition temperature of 0.45 K.
Characteristic
Lanthanum hexaboride (LaB6, also called lanthanum boride and LaB) is an inorganic chemical, a boride of lanthanum. It is a refractory ceramic material that has a melting point of 2210 °C, and is insoluble in water and hydrochloric acid.
Chemical formula：LaB6
Molar mass： 203.78 g/mol
Appearance： intense purple violet
Density： 4.72 g/cm3
Melting point： 2,210 °C (4,010 °F; 2,480 K)
Solubility in water：insoluble
Crystal structure：Cubic
Application
The principal use of lanthanum hexaboride is in hot cathodes, either as a single crystal or as a coating deposited by physical vapor deposition.
LaB6 is also used as a size/strain standard in X-ray powder diffraction to calibrate instrumental broadening of diffraction peaks.
LaB6 is a superconductor with a relatively low transition temperature of 0.45 K.
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