Publisher's Synopsis
Excerpt from Reference List on the Electric Fixation of Atmospheric Nitrogen and the Use of Calcium Cyanamid and Calcium Nitrate on Soils
Lime nitrogen or calcium cyanamid utilizes the atmospheric nitro gen in a manner which, chemically at least, is distinctly different from the processes described above. Calcium carbide is made by heatingi in an electric furnace a mixture of lime and carbon, or some highly carbonaceous matter, such as coke'screenings, tarry residues, etc. If, now, the process is carried further in an electric furnace of special construction, and a current of nitrogen or air rich in nitrogen is passed over the highly heated carbide, a chemical reaction takes place. The heat be sufficiently high and prolonged, calcium cyanide is formed.
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