Calcination (heating) of the raw material to 900 degrees celsius, using natural gas as the fuel. calcination causes the calcium carbonate contained in the raw material to decompose calcium oxide (lime) and carbon dioxide [caco3 => cao + co2]. the produced lime is then slaked in water, to produce calcium hydroxide (quicklime) [ cao + h2o => ca(oh)2]. Saudi carbonate company ltd, wishes to thank you for the query you have sent. we acknowledge its receipt and our team will contact you asap. kindly ensure that all your contact details are available and correct (name, company, location, tel, and email). Quality ppm magnesium carbonate agents magnesium carbonate glass magnesium carbonate sale lead ppm magnesium carbonate 41 45% magnesium carbonate heavy industrial hebei meishen technology co., ltd. China basic magnesium carbonate catalog of basic magnesium carbonate cas no. 39409-82-0, magnesium carbonate hydroxide powder used for rubber provided by china manufactureryantai fr flame retardant science & technology co., ltd., page1.