Catalog Number
ACM471341-1
Product Name
Calcium Carbonate Nanoparticles
Category
Nanoparticles & Nanopowders
Description
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.;Limestone is an odorless, white to tan powder.;Limestone (calcium carbonate) that has been recrystallized by metamorphism and is capable of taking a polish. Practically insoluble in water.;DryPowder; DryPowder, Liquid; DryPowder, OtherSolid; Liquid; OtherSolid; PelletsLargeCrystals; WetSolid; WetSolid, Liquid; WetSolid, OtherSolid;DryPowder; DryPowder, Liquid; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals; DryPowder, PelletsLargeCrystals, Liquid; DryPowder, WetSolid; Liquid; OtherSolid; OtherSolid, Liquid; PelletsLargeCrystals; WetSolid; WetSolid, Liquid; WetSolid, OtherSolid;White crystalline or amorphous, odourless and tasteless powder;WHITE POWDER OR PELLETS.;White, odorless powder or colorless crystals. Calcium carbonate is soluble in concentrated mineral acids.;White, odorless powder or colorless crystals.;Limestone (calcium carbonate) that has been recrystallized by metamorphism and is capable of taking a polish. Practically insoluble in water.;White, odorless powder or colorless crystals.;Odorless, white to tan powder.;Odorless, white powder.
Synonyms
Nanoscale calcium carbonate
IUPAC Name
calcium carbonate
Canonical SMILES
C(=O)([O-])[O-].[Ca+2]
InChI
InChI=1S/CH₂O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChI Key
VTYYLEPIZMXCLO-UHFFFAOYSA-L
Solubility
Soluble in water
Covalently-Bonded Unit Count
2
Decomposition
When heated to decomposition it emits acrid smoke and irritating vapors.;At about 825 °C it decomposes into calcium oxide and carbon dioxide;825 °C
Monoisotopic Mass
99.947335g/mol
Morphology
cubic or hexagonal
Other Experimental
Bulk density: 40-100 lb/cubic ft; screen analysis: usually 200 to 325 mesh;Very flowable ... surface treated with fatty acids, hydrophobic;Enthalpy of Fusion: 36 kJ/mol at 800 °C (calcite);Incompatibilities: acids, alum, ammonium salts.;Solubility Product constant: 3.36X10-9 at 25 °C;White microcrystalline powder; mw: 100.09; mp: 825 °C (alpha), 1339 °C (beta) at 102.5 atm; density: 2.7-2.95. Odorless, tasteless powder or crystals. /Limestone/;Aragonite is metastable and irreversibly changes to calcite when heated in dry air to about 400 °C. Vaterite is metastable to calcite and aragonite under geological conditions but is found during high temperature precipitation of calcium carbonate.;MP: 1339 °C (102.5 atm); density: 2.7111 at 25.2 °C; formed at temperatures below 30 °C /Calcite/;White hexagonal crystals or powder. Decomposes at 700 to 900 °C. Density: 2.710 g/cu cm. Solubility: 6.6X10-4 g/100 g water at 20 °C; Soluble in dilute acid /Calcite/;Mohs hardness: 3.0 (Calcite); 3.5-4.0 (Argonite);White orthorhombic crystals or powder; MP: trans calcite, 450 °C; density: 2.930 g/cu cm; solubility: 6.6X10-4 g/100 g water at 20 °C; soluble in dilute acid /Argonite/;MP: 825 °C (decomposes); Density: 2.83; Formed at temp above 30 °C /Aragonite/;Colorless hexagonal crystals; density: 2.653 g/cu cm; solubility: 1.1X10-3 g/100 g water at 20 °C; soluble in dilute acid /Vaterite/
Refractive Index
Index of Refraction: 1.7216 (300 nm); 1.6584 (589 nm); 1.6503 (750 nm) /Calcite/;Index of refraction: 1.5145 (300 nm); 1.4864 (589 nm); 1.4828 (750 nm) /Aragonite/
RTECS Number
EV9580000;FF9335000
Stability
Indefinite shelflife.;STABLE IN AIR
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);0 mm Hg (approx) (NIOSH, 2016);0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx);0 mmHg (approx);approx 0 mmHg;0 mmHg (approx);0 mmHg (approx);0 mmHg (approx)
Download
