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12911
CALCIUM CARBONATE, ACS Reagent, -100 mesh, CaCO3
CAS[471-34-1]
HYGROSCOPIC
Calcium carbonate appears as white, odorless powder or colorless crystals. Practically insoluble in water. Occurs extensive in rocks world-wide. Ground calcium carbonate (CAS: 1317-65-3) results directly from the mining of limestone. The extraction process keeps the carbonate very close to its original state of purity and delivers a finely ground product either in dry or slurry form. Precipitated calcium carbonate (CAS: 471-34-1) is produced industrially by the decomposition of limestone to calcium oxide followed by subsequent recarbonization or as a by-product of the Solvay process (which is used to make sodium carbonate). Precipitated calcium carbonate is purer than ground calcium carbonate and has different (and tailorable) handling properties.
Synonyms
CALCIUM CARBONATE
471-34-1
Limestone
Chalk
Calcite
Marble
Carbonic acid calcium salt (1:1)
Aragonite
471-34-1
Limestone
Chalk
Calcite
Marble
Carbonic acid calcium salt (1:1)
Aragonite
Molecular Weight
100.09
Solubility
0.001 % (NIOSH, 2016)
Boiling Point
Decomposes (NIOSH, 2016)
Melting Point
1517 to 2442 °F (Decomposes) (NIOSH, 2016)
Density
2.7 to 2.95 (NIOSH, 2016)
