Calcium carbonate Brand: zhuorui Our calcium carbonate is made from natural high quality limestone crushed directly, each specification reaches the world advanced level. Calcium carbonate can be used in all kinds of food. It can be used as leavening agent , flour treating agent and processing agent. It can provide the ca element for human body directly, but also can be used to make calcium supplement agents. In some foods(such as chewing gum, chocolate), calcium carbonate is used as enhancer. It can reduce the cost, and can be used as the matrix material. Specification : Items Specifications  description A white , dry free flowing powder Assay ( ca(oh)2) 99.5% Magnesium and alkali salts 0.8% Acid-insoluble substances 0.09%  arsenic( as) < 3mg/kg Fluoride(f)