Calcium carbonate CAS#471-34-1
Calcium carbonate CAS#471-34-1 - Image 2
Calcium carbonate CAS#471-34-1 - Image 3
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Calcium carbonate CAS#471-34-1

Calcium carbonate, with the chemical formula CaCO3, is an inorganic compound found in nature as calcite, aragonite, and vaterite. It is a white solid that is insoluble in water but soluble in acid. Widely used as a filler and coating pigment in paper and plastics, calcium carbonate also serves as a primary ingredient in the production of cement and lime. Known for its high purity and chemical stability, it is utilized in pharmaceuticals, food additives, and as a dietary calcium supplement. Its versatility makes it an essential component in various industrial applications.

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Calcium carbonate CAS#471-34-1

Calcium carbonate Chemical Properties
Melting point 825 °C
Boiling point 800 °C
density 2.93 g/mL at 25 °C (lit.)
refractive index 1.6583
storage temp. Store at +5°C to +30°C.
solubility 5 M HCl: 0.1 M at 20 °C, clear, colorless
form random crystals
color White-beige to slightly beige-gray
Specific Gravity 2.93
PH 9.91(1 mM solution);9.91(10 mM solution);9.91(100 mM solution);
Odor Odorless
PH Range 8
Water Solubility Insoluble
λmax λ: 260 nm Amax: ≤0.09
λ: 280 nm Amax: ≤0.06
Merck 14,1657
BRN 8008338
Solubility Product Constant (Ksp) pKsp: 8.54
Exposure limits NIOSH: TWA 10 mg/m3; TWA 5 mg/m3
Dielectric constant 6.1（Ambient）
Stability: Stable. Incompatible with acids, fluorine, ammonium salts, alum.
InChIKey VTYYLEPIZMXCLO-UHFFFAOYSA-L
CAS DataBase Reference 471-34-1(CAS DataBase Reference)
EPA Substance Registry System Calcium carbonate (471-34-1)
Safety Information
Hazard Codes Xi
Risk Statements 37/38-41-36/38-36
Safety Statements 26-36/37/39-37/39-37
OEB B
OEL TWA: 10 mg/m3 (total)
WGK Germany –
RTECS FF9335000
TSCA Yes
HS Code 28365000
Hazardous Substances Data 471-34-1(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 6450 mg/kg LD50 dermal Rat > 2000 mg/kg

 

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