We supply various raw materials in vitamins, minerals, extracts and oils . Welcome to advise! Purity:% ≥ 98Hydrochloric ... ; +2 / p-2Density: 2.93Melting point: 825 °CBoiling point: for the production of cement, ceramics, lime, calcium, toothpaste, dyes, pigments, mineral ... , putty, neutralizing agent, catalyst, fillers, pharmaceuticals. Food grade calcium carbonate---Raw materials supply