碱式碳酸镁的化学式为a Mg(OH)2·b MgCO3·c H2O。取4.66 g碱式碳酸镁,高温煅烧至恒重,得到固体2.00g和标准状况下0.896L CO2。该碱式碳酸镁b : c的值为 A.1 :1B.5 :4C.4 :5D.1 :4 请仔细审题,看清楚题目要求,认真作答! 试题解析
This paper describes a leaching-purifying-precipitation process to recover magnesium from serpentine acid-leaching solution and to synthesize high purity Mg(OH)2 and 4MgCO3·Mg(OH)2·4H2O. Fe, Al, and Cr in the leaching solution were removed using the oxidation precipitation method with active ...