definition
A chemical compound, NH2CN; a white crystalline solid, soluble in water, having many commercial applications including fertilizer
definition
Any derivative of this compound in which one or more hydrogen atoms are replaced by an alkyl or aryl group
The first three will he treated here; for the others see Prussic Acid and Cyanamide.
Nascent hydrogen reduces cyanamide to ammonia and methylamine.
Calcium cyanamide has assumed importance in agriculture since the discovery of its economic production in the electric furnace, wherein calcium carbide takes up nitrogen from the atmosphere to form the cyanamide with the simultaneous liberation of carbon.
It appears that with soils which are not rich in humus or not deficient in lime, calcium cyanamide is almost as good, nitrogen for nitrogen, as ammonium sulphate or sodium nitrate; but it is of doubtful value with peaty soils or soils containing little lime, nor is it usefully available as a top-dressing or for storing.
The manufacture of alcohol from the sulphite lyes of the wood-pulp industry was contemplated, but carbide, although produced in increasing quantities, was not considered as a possible raw material owing to its greater importance as a source of the fertilizer cyanamide.
Heated in a current of carbon dioxide sodamide yields caustic soda and cyanamide, and with nitrous oxide it gives sodium azoimide; it deflagrates with lead or silver nitrate and explodes with potassium chlorate.
On warming with sodium, it yields cyanamide.
It may be obtained synthetically by the action of ammonium iodide on cyanamide, CN NH2+ NH 4 I=CN 3 H 5 HI
Heated in the electric furnace in a current of air, it yields calcium cyanamide (see Cyanamide).
Reynolds, Ann., 1869, 150, p. 224), by passing sulphuretted hydrogen into an ethereal solution of cyanamide (E.
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