CALCIUM CARBONATE DOMESTIC PRODUCT
Molecular Formula: Variable
Degree of substitution DS-DS 0:51
Soluble in water
Viscosity (CP) 45
CAS Number 471-34-1
EC- Number 207-439-9
Molecular Formula CaCO3
Molecular Mass 100.0869 g / mol
View Fine White Powder
Density 2,711 g / cm3 (calcite) - 2,83 g / cm3 (aragonite)
Melting point 1339 oC (Calcite) - 825 oC (Aragonite)
Solubility (In water) 0.013 g / L (25 oC)
Solubility (in diluted acid)
Calcium carbonate is a type of chemical compound that is popularly known as limestone. Its compound formula is CaCO3. This compound is most commonly found in ancient rocks and seashells. While calcium carbonate is a member of antacids, its excess is biologically harmful.
Production And Reactions
Calcium carbonate has almost the same properties as other types of carbonate. Carbon dioxide gas is released when it encounters strong acids:
CaCO3 (k) + 2HCl (s) → CaCl2 (s) + CO2 (g) + H2O (s)
Calcium carbonate, which also warms up to 840 ° C, releases carbon dioxide, and enthalpy with an energy of 178 kJ / mol creates calcium oxide and carbon dioxide:
CaCO3 → CaO + CO2
It is used to bind phosphorus in foods and balance phosphate compounds in chronic kidney failure cases that have lost kidney function and cannot remove the phosphorus in the blood through the urinary tract.
It is used as an additive and in soy milk under the name E170.