单词	cyanamide
释义	cyanamide /sʌɪˈanəmʌɪd / noun [mass noun] Chemistry 1A weakly acidic crystalline compound made as an intermediate in the production of ammonia. Alternative name: cyanogen amide; chemical formula: CH2N2. Under this scenario, dormancy-breaking chemicals (such as hydrogen cyanamide, HC) enhance budbreak by diminishing the duration of suppression.... It re-examined the approval to import and manufacture soluble concentrates containing hydrogen cyanamide to ensure existing controls were adequate to address potential risks. Enzymatic activity in extracts of a soil fungus, Myrothecium verrucaria, hydrates the nitrile group of cyanamide with formation of urea. 1.1A salt of cyanamide containing the anion CN22−, especially the calcium salt used as a fertilizer.The reactivity of the nitrile functional group in calcium cyanamide makes it as a chief industrial raw material.... No information is available on the reproductive or developmental effects of calcium cyanamide in humans or animals. Origin Mid 19th century: blend of cyanogen and amide.
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