|
Atomistry » Chromium » Compounds » Chromium Nitrides | ||
Atomistry » Chromium » Compounds » Chromium Nitrides » |
Chromium Nitrides
The absorption of nitrogen by finely divided chromium begins at 800° to 820° C.; the metal does not melt; the product, which is distinctly magnetic, contains 8 per cent, of nitrogen. On heating to 850° C. in ammonia, chromium yields a dull black nitride, Cr3N2, containing small quantities of unchanged chromium.
A nitride of chromium, CrN, is formed when the violet sesquioxide is heated in a current of dry ammonia, when chromic and ammonium chlorides are heated together in hydrogen, or when chromium amalgam is distilled in nitrogen. On heating the nitride in hydrogen no reduction is observed; the brown insoluble powder, on heating in air, burns to nitrogen and chromic oxide, and on heating in ammonia is said to yield the nitride Cr3N. |
Last articlesZn in 7VD8Zn in 7V1R Zn in 7V1Q Zn in 7VPF Zn in 7T85 Zn in 7T5F Zn in 7NF9 Zn in 7M4M Zn in 7M4O Zn in 7M4N |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |