Calcium carbonate CAS#471-34-1

CAS Number: 471-34-1
Chemical Formula: CCaO3
Synonyms:

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Calcium carbonate occurs in nature as limestone in various forms, such as marble, chalk, and coral. It is probably the most widely-used raw material in the chemical industry. It has numerous applications, primarily to produce cement, mortars, plasters, refractories, and glass as building materials. It also is used to produce quicklime, hydrated lime and a number of calcium compounds. It is produced either as powdered or precipitated calcium carbonate. The latter consists of finer particles of greater purity and more uniform size. They also have many important commercial applications. Various grades of precipitated calcium carbonate are used in several products, such as textiles, papers, paints, plastics, adhesives, sealants, and cosmetics.

Calcium carbonate Chemical Properties

Melting point	825 °C
Boiling point	800 °C
bulk density	300-1400kg/m3
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
Flame Color	Red-orange
Odor	Odorless
PH	9.91(1 mM solution);9.91(10 mM solution);9.91(100 mM solution);
PH Range	8
Water Solubility	Insoluble
λmax	λ: 260 nm Amax: ≤0.09 λ: 280 nm Amax: ≤0.06
Merck	14,1657
Solubility Product Constant (Ksp)	pKsp: 8.54
BRN	8008338
Dielectric constant	6.1（Ambient）
Exposure limits	NIOSH: TWA 10 mg/m3; TWA 5 mg/m3
Stability:	Stable. Incompatible with acids, fluorine, ammonium salts, alum.
Cosmetics Ingredients Functions	BULKING BUFFERING ABRASIVE ORAL CARE COLORANT OPACIFYING
Cosmetic Ingredient Review (CIR)	Calcium carbonate (471-34-1)
InChI	1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChIKey	VTYYLEPIZMXCLO-UHFFFAOYSA-L
SMILES	[Ca++].[O-]C([O-])=O
Modulus of Elasticity	10.0 - 80.0 GPa
Hardness, Knoop	75 - 120
Hardness, Mohs	2.0 - 5.0
Hardness, Shore H	10 - 60
Hardness, Vickers	105 - 136
Drilling Hardness	50
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	TSCA listed
HS Code	28365000
Storage Class	13 - Non Combustible Solids
Hazardous Substances Data	471-34-1(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 6450 mg/kg LD50 dermal Rat > 2000 mg/kg