*Calcium Carbonate* =
One of the most common chemicals on earth. It’s basically limestone, chalk, marble, and seashells.
**Property** **Detail**
**Other names** Limestone, Chalk, Calcite, Whiting
**Look** White powder, granules, or rock
**Solubility** Insoluble in water. Dissolves in acid with fizz: \rightarrow CaCl_2 + CO_2 + H_2O$
**pH** Alkaline ~9.3. Neutralizes acid
**Grades** Food grade, Pharma grade, Industrial grade, Agricultural lime
1. *Agriculture - "Agri Lime"*
Raises soil pH. Fixes acidic soil for maize, beans, vegetables. Also adds Calcium
2. *Food E170*
Calcium supplement, anti-caking agent, dough conditioner. In milk, bread, cereals