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398101

Sigma-Aldrich

Calcium carbonate

ACS reagent, chelometric standard, 99.95-100.05% dry basis

Linear Formula:
CaCO3
CAS Number:
Molecular Weight:
100.09
Beilstein:
8008338
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

grade

ACS reagent
chelometric standard

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

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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).

Packaging

1 kg in poly bottle
100, 500 g in poly bottle

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Denis Gebauer et al.
Nanoscale, 3(9), 3563-3566 (2011-08-19)
Nanocellulose hybrids are promising candidates for biodegradable multifunctional materials. Hybrids of nanocrystalline cellulose (NCC) and amorphous calcium carbonate (ACC) nanoparticles were obtained through a facile chemical approach over a wide range of compositions. Controlling the interactions between NCC and ACC
Calcium carbonate nanoparticles as cancer drug delivery system.
Maleki Dizaj S, et al.
Expert Opinion on Drug Delivery, 12(10) (2015)
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)
Aluminum release from microwave-assisted reaction of coal fly ash with calcium carbonate.
Zhang ZY, et al.
Fuel Processing Technology, 134, 303-309 (2015)
Permeability of porous ceramic based on calcium carbonate as pore generating agent.
Sim?o L, et al.
Ceramics International, 41(3), 4782-4788 (2015)

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