Calcium Carbonate Nanoparticles

• CAS: 471-34-1
• Catalog Number: ACM471341-1
• Category: Nanoparticles & Nanopowders
• Molecular Weight: 100.09
• Molecular Formula: CaCo3
• 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
• Boiling Point: Decomposes
• Melting Point: 825 °C
• Density: 2.7 g/cm³
• Solubility: Soluble in water
• Appearance: Powder
• Application: Calcium Carbonate Nanoparticles serve an important role across a variety of applications due to their unique properties. These nanoparticles are derived from calcium carbonate, a naturally occurring white solid that is only sparingly soluble in water but readily dissolves in acids. Historically used for neutralizing, cleaning, and polishing, the fine particles of calcium carbonate are essential in numerous industrial processes. They are crucial in the production of building materials like cement and glass, the creation of quicklime, and numerous calcium compounds. Beyond traditional uses, the nanoscale form of calcium carbonate offers enhanced features such as higher purity and more uniform particle sizes, opening doors to advanced applications in sectors like paints, plastics, textiles, adhesives, and even cosmetics. Serving as mild abrasives, stabilizers, and fillers, these nanoparticles contribute to the improvement of product durability, aesthetics, and performance. Moreover, in medical applications, calcium carbonates are utilized as calcium supplements and phosphate-binding agents, with the nanoscale variant providing potential benefits in terms of absorption and digestive tolerance.
• Bulk Density: 0.68 g/ml
• Chemical Formula: CaCO3
• Color/Form: White
• Complexity: 18.8
• Corrosivity: Non-corrosive
• 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
• EC Number: 207-439-9
• Exact Mass: 99.947335g/mol
• Form: Powder
• Formal Charge: 0
• H-Bond Acceptor: 3
• H-Bond Donor: 0
• Heavy Atom Count: 5
• ICSC Number: 1193
• MDL Number: MFCD00010906
• Monoisotopic Mass: 99.947335g/mol
• Morphology: cubic or hexagonal
• Odor: Odorless
• 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/
• Particle Size: 15-40 nm
• 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/
• Rotatable Bond Count: 0
• RTECS Number: EV9580000;FF9335000
• Stability: Indefinite shelflife.;STABLE IN AIR
• True Density: 2.93 g/cm³
• UNII: H0G9379FGK
• 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)