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Barium carbide cyanide

In 1895, Frank and Caro found that when barium carbide was heated to redness in air the main product was barium cyanide, but simultaneously a certain amount of barium cyanamide was formed. These two reactions, therefore, proceeded side by side ... [Pg.54]

Barium hydroxide and carbonate arc heated with coko in a revolving electric furnace. Tho barium carbide formed, rolls down into a cooler region and there coiucs into contact with a stream of atmospheric nitrogen, and the resulting cyanide is withdrawn ... [Pg.57]

Nitrogen, which forms about four-fifths of the air, is produced by the methods we have already indicated, ospecially tho Linde-Hampson process, and is used in tho synthetic preparation of ammonia, apd of cyanamide and cyanides, from calcium and barium carbides respectively. [Pg.131]

When barium carbide is heated in nitrogen, barium cyanide is formed —... [Pg.239]

In 1895 Adolf Frank (1834-1916) and Nikodemus Caro (1871-1935) substituted barium carbide for the carbonate and reported that the reaction proceeded better with addition of water vapor. In contrast, shortly afterward F. Rothe, employed by Beringer Sohne in Charlottenburg found that the reaction proceeds best with very pure Nz and in the driest possible conditions. In 1898, after Rothe began working for Frank and Caro in Hamburg, he discovered that cyanamide, rather than cyanide, was the main product. Once it was shown that a much cheaper calcium carbide reacts in much the same way at temperatures between 1,000 and 1,100 °C, it was possible to contemplate a commercial venture based on the reaction... [Pg.51]

Barium cyanamide, BaCN2, formed in a mixture with barium cyanide, [CAS 542-62-1], BaiCN)2, by heating banum carbide at 800°C with nitrogen gas. Fusion of the cyanamide-cyanide mixture with sodium carbonate converts it entirely to cyanide. [Pg.172]


See other pages where Barium carbide cyanide is mentioned: [Pg.422]    [Pg.79]    [Pg.465]    [Pg.97]    [Pg.102]    [Pg.103]    [Pg.5]   
See also in sourсe #XX -- [ Pg.239 ]




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