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A white or colorless crystalline solid, CaCN2, that is used as a fertilizer and weed killer and impairs ethanol metabolism in humans who are exposed to it. The presence of impurities can cause it to appear grayish-black.
(Elements & Compounds) a white crystalline compound formed by heating calcium carbide with nitrogen. It is important in the fixation of nitrogen and can be hydrolysed to ammonia or used as a fertilizer. Formula: CaCN2
a gray-black powder, CaCN2, used as a fertilizer and herbicide.