... content% ≤ 0.03Magnesium and alkali metals% ≤ 1.0Arsenic ≤ 3ppmLoss on drying% ≤ 2.0Chinese name: calcium carbonateEnglish Name: Calcium CarbonateChinese Synonyms: light calcium; activity of calcium ... cement, ceramics, lime, calcium, toothpaste, dyes, pigments, mineral water, artificial stone, putty, neutralizing agent, catalyst, fillers, pharmaceuticals. Food grade calcium carbonate---Raw materials ...