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Merck
CN

CX0110

Calcium carbonate

Meets ACS Specifications GR ACS

Synonym(s):

Carbonic Acid Calcium Salt, Calcium Carbonate

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About This Item

Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
EC Index Number:
207-439-9
UNSPSC Code:
12352302
Beilstein/REAXYS Number:
8008338
MDL number:
Assay:
≥99.0% dry basis
Grade:
ACS reagent
Form:
powder
Solubility:
0.017 g/L
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SMILES string

[Ca++].[O-]C([O-])=O

InChI

1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2

InChI key

VTYYLEPIZMXCLO-UHFFFAOYSA-L

grade

ACS reagent

assay

≥99.0% dry basis

form

powder

impurities

≤0.01% Insoluble in dilute hydrochloric acid

color

white

pH

9.5-10.5 (20 °C, 100 g/L in H2O, slurry)

mp

825 °C (decomposition)

solubility

0.017 g/L

density

2.93 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%, fluoride (F-): ≤0.0015%, sulfate (SO42-): ≤0.01%

cation traces

Ba: ≤0.01%, Fe: ≤0.003%, K: ≤0.01%, Mg: ≤0.02%, NH4+: ≤0.003%, Na: ≤0.1%, Sr: ≤0.1%, heavy metals (as Pb): ≤0.001%

shipped in

ambient

storage temp.

room temp

Quality Level

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Application

Meets ACS Specifications GR ACS

Analysis Note

Ammonium (NH4): 0.003% max
Assay (dried): 99.0% min
Barium (Ba): 0.01% max
Chloride (Cl): 0.001% max
Color: White
Fluoride (F): 0.0015% max
Form: Powder
Heavy metals (as Pb): 0.001% max
Insoluble in dilute hydrochloric acid: 0.01% max
Iron (Fe): 0.003% max
Magnesium (Mg): 0.02% max
Potassium (K): 0.01% max
Sodium (Na): 0.1% max
Strontium (Sr): 0.1% max
Sulfate (SO4): 0.01% max

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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