S P E C I F I C A T I O N S

CALCIUM CARBONATE ACS

Synonyms:					Carbonic Acid calcium salt; Calcite;
						Aragonite; Limestone

CAS No:						471-34-1

Chemical Formula:					CaCO3

Formula Weight:					100.09

Description:						White powder

Assay (dried basis):					>99% CaCO3

Insoluble in dilute hydrochloric acid		0.01% maximum
Chloride (CI)					0.001% maximum
Fluoride (F)						0.0015% maximum
Sulfate (SO4)						0.01% maximum
Ammonium (NH4)					0.003% maximum
Heavy metals (as Pb)				0.001% maximum
Iron (Fe)						0.003% maximum
Barium (Ba)						0.01% maximum
Magnesium (Mg)					0.02% maximum
Potassium (K)					0.01% maximum
Sodium (Na)						0.1% maximum
Strontium (Sr)					0.1% maximum

Effective Date 01/27/09