Which gas is produced when water is mixed with Calcium Carbide?
Calcium carbide generally declining. Production levels in the USA in 1990s were 236,000 tons per year. Calcium carbide reacts with nitrogen at high temperature to form calcium cyanamide: Commonly known as nitrolim, calcium cyanamide is used as fertilizer. It is hydrolysed to cyanamide, HNCN. Calcium carbide is used: Calcium carbide is used in carbide lamps. Water dripping on carbide produces acetylene gas, which burns and produces light. While these lamps gave steadier and brighter light than candles, they were dangerous in coal mines, where flammable methane gas made them a serious hazard. The presence of flammable gases in coal mines led to
Calcium carbide lamps; manufacture of chemicals for fertilizer; and in steelmaking. Calcium carbide is produced industrially in an electric arc furnace from a mixture of lime and coke at approximately 2200 °C. This method has not changed since its invention in 1892: The high temperature required for this reaction is not practically achievable by traditional combustion, so the reaction is performed in an electric arc furnace with graphite electrodes. The carbide product produced generally contains around 80% calcium carbide by weight. The carbide is crushed to produce small lumps that can range from a few mm up to 50 mm. The impurities