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Cobalt boride CoB

By heating mixtures of cobalt and boron in a current of hydrogen at 1100-1200° C., du Jassoneix 4 has prepared two borides of cobalt, namely, the Sub-boride, CoaB, and the Di-boride, CoB2. The former occurs as brilliant steel-grey needles of density 7-9 at 20° C. These are oxidised by moist air and readily dissolve in nitric acid. The di-boride represents the extreme limit of combination of boron with iron. Evidence of the existence of aMono-boride, CoB, has also been obtained.5... [Pg.74]

See other pages where Cobalt boride CoB is mentioned: [Pg.313]    [Pg.709]    [Pg.701]    [Pg.687]    [Pg.783]    [Pg.747]    [Pg.781]    [Pg.701]    [Pg.313]    [Pg.709]    [Pg.701]    [Pg.687]    [Pg.783]    [Pg.747]    [Pg.781]    [Pg.701]    [Pg.218]    [Pg.218]    [Pg.985]    [Pg.165]    [Pg.381]   
See also in sourсe #XX -- [ Pg.36 ]



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Borides

Cobalt boride

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