Calcium Carbonate
Product Name: Calcium Carbonate
CAS Number: 471-34-1
Molecular formula: CCaO3
Molecular weight: 100.0869
EINECS number: 207-439-9
Chemical composition
Chemical formula: CaCO₃
Relative molecular mass: Approximately 100.09
Composition: It is composed of three elements: calcium (Ca), carbon (C), and oxygen (O). Among them, calcium has a valence of +2 and carbonate has a valence of -2.
Physical properties
State: Usually white crystals or amorphous powder.
Smell: Odorless and tasteless.
Solubility: Insoluble in water. In solutions containing ammonium ions or trivalent iron ions, the solubility will significantly increase due to the formation of complexes. It is also insoluble in alcohol, but soluble in acids such as hydrochloric acid and nitric acid, and will produce carbon dioxide gas.
Density: approximately 2.71g/cm³ (density varies slightly among different crystalline forms).
Mohs hardness: 3
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