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12010

Sigma-Aldrich

Carbonate de calcium

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E170, precipitated, 98.5-100.5% (based on anhydrous substance)

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About This Item

Formule linéaire :
CaCO3
Numéro CAS:
471-34-1
Poids moléculaire :
100.09
Numéro Beilstein :
8008338
Numéro CE :
207-439-9
Numéro MDL:
MFCD00010906
Code UNSPSC :
12352300
ID de substance PubChem :
329749592
Nomenclature NACRES :
NA.21

Qualité

puriss.
meets analytical specification of Ph. Eur., BP, USP, FCC, E170
precipitated

Pureté

98.5-100.5% (based on anhydrous substance)

Forme

powder

Impuretés

organic volatile impurities, complies
 residual solvents, complies
≤0.002% heavy metals (as Pb)
≤0.2% insoluble in acid (CH3COOH)
≤0.2% insoluble in hydrochloric acid
≤1% alkali-, Mg-ions (as SO4)

Perte

≤2% loss on drying, 200 °C

pH

8

Densité

2.93 g/mL at 25 °C (lit.)

Traces d'anions

chloride (Cl-): ≤200 mg/kg
fluoride (F-): ≤50 mg/kg
sulfate (SO42-): ≤2000 mg/kg

Traces de cations

As: ≤2 mg/kg
Ba:, in accordance
Cu: ≤10 mg/kg
Fe: ≤200 mg/kg
Hg: ≤0.5 mg/kg
Pb: ≤3 mg/kg
Zn: ≤10 mg/kg

Chaîne SMILES 

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

InChI

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

Clé InChI

VTYYLEPIZMXCLO-UHFFFAOYSA-L

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Catégories apparentées

Application


  • Heavy metal immobilization and radish growth improvement using Ca(OH)(2)-treated cypress biochar in contaminated soil.: This study demonstrates the efficacy of Ca(OH)(2)-treated cypress biochar, rich in calcium carbonate, in immobilizing heavy metals and enhancing radish growth in contaminated soils, offering sustainable solutions for soil remediation (Shah et al., 2024).

  • Liming potential and characteristics of biochar produced from woody and non-woody biomass at different pyrolysis temperatures.: This research investigates the liming potential of biochar, particularly focusing on the role of calcium carbonate in neutralizing soil acidity and improving soil health, thus promoting sustainable agricultural practices (Murtaza et al., 2024).

  • Valorisation diagnosis of waste from the decontamination of phosphogypsum leachates through a combined calcium carbonate/hydroxide process.: This study evaluates the effectiveness of a combined calcium carbonate/hydroxide process in decontaminating phosphogypsum leachates, highlighting the potential of this method in waste valorization and environmental management (Soto-Cruz et al., 2024).


Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Yves F Widmer et al.
eLife, 7 (2018-10-23)
Lasting changes in gene expression are critical for the formation of long-term memories (LTMs), depending on the conserved CrebB transcriptional activator. While requirement of distinct neurons in defined circuits for different learning and memory phases have been studied in detail
M Azizur Rahman et al.
PloS one, 8(3), e58781-e58781 (2013-03-26)
An organic matrix consisting of a protein-polysaccharide complex is generally accepted as an important medium for the calcification process. While the role this "calcified organic matrix" plays in the calcification process has long been appreciated, the complex mixture of proteins
Jane A Cauley et al.
Journal of women's health (2002), 22(11), 915-929 (2013-10-18)
Clinical outcomes of the Women's Health Initiative (WHI) calcium plus vitamin D supplementation trial have been reported during 7.0 years of active intervention. We now report outcomes 4.9 years after the intervention stopped and cumulative findings. Postmenopausal women (N=36,282) were
Christopher T Parsons et al.
Environmental pollution (Barking, Essex : 1987), 178, 254-263 (2013-04-17)
Arsenic contamination of floodplain soils is extensive and additional fresh arsenic inputs to the pedosphere from human activities are ongoing. We investigate the cumulative effects of repetitive soil redox cycles, which occur naturally during flooding and draining, on a calcareous
Julyan H E Cartwright et al.
Angewandte Chemie (International ed. in English), 51(48), 11960-11970 (2012-11-06)
Although the polymorphism of calcium carbonate is well known, and its polymorphs--calcite, aragonite, and vaterite--have been highly studied in the context of biomineralization, polyamorphism is a much more recently discovered phenomenon, and the existence of more than one amorphous phase
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