"calcium cyanamide." YourDictionary, n.d. Web. 14 March 2019. <https://www.yourdictionary.com/calcium-cyanamide>.
calcium cyanamide. (n.d.). Retrieved March 14th, 2019, from https://www.yourdictionary.com/calcium-cyanamide
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.