398101
Calcium carbonate
ACS reagent, 99.95-100.05% dry basis
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About This Item
Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
UNSPSC Code:
12352300
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
Assay:
99.95-100.05% dry basis
Grade:
ACS reagent
Form:
powder
Solubility:
dilute HCl: 6.7%
grade
ACS reagent
Quality Level
assay
99.95-100.05% dry basis
form
powder
impurities
≤0.01% NH4OH pptd., ≤0.01% insol. dil. HCl
pH
8
solubility
dilute HCl: 6.7%
density
2.93 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%, fluoride (F-): ≤0.0015%, sulfate (SO42-): ≤0.005%
cation traces
Ba: ≤0.01%, Fe: ≤0.002%, K: ≤0.01%, Mg: ≤0.01%, NH4+: ≤0.003%, Na: ≤0.01%, Sr: ≤0.1%, heavy metals: ≤0.001% (by ICP)
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
General description
Calcium carbonate is a calcium salt commonly found in shells and skeleton of marine animals. It is an inexpensive, non-toxic and easily available reagent with a wide range of applications.
Application
Calcium carbonate may be used:
- As a pore generating agent to prepare porous ceramics.
- As chelometric standard for the standardization of EDTA solution.
- To extract aluminium by microwave induced thermal activation of coal fly ash (CFA).
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Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Permeability of porous ceramic based on calcium carbonate as pore generating agent.
Sim?o L, et al.
Ceramics International, 41(3), 4782-4788 (2015)
Kanwaljit Kaur
Handbook of Water and Wastewater Analysis, 247-248 (2007)
Opposite particle size effect on amorphous calcium carbonate crystallization in water and during heating in air.
Zou Z, et al.
Chemistry of Materials, 27(12), 4237-4246 (2015)