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Merck

239216

Sigma-Aldrich

Carbonato de calcio

Calcium carbonate

ACS reagent, ≥99.0%, powder

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100 G
MXP 1,498.00
500 G
MXP 3,291.00
1 KG
MXP 6,185.00
2.5 KG
MXP 13,963.00

MXP 1,498.00


Disponible para envío el21 de abril de 2025Detalles

Este SKU también está disponible como grado ACS en nuestra exclusiva línea de productos fluidos Redi-Dri™.

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100 G
MXP 1,498.00
500 G
MXP 3,291.00
1 KG
MXP 6,185.00
2.5 KG
MXP 13,963.00

About This Item

Fórmula lineal:
CaCO3
Número de CAS:
Peso molecular:
100.09
Beilstein:
8008338
Número CE:
Número MDL:
Código UNSPSC:
12352300
ID de la sustancia en PubChem:
NACRES:
NA.21

MXP 1,498.00


Disponible para envío el21 de abril de 2025Detalles

Este SKU también está disponible como grado ACS en nuestra exclusiva línea de productos fluidos Redi-Dri™.

Solicitar un pedido a granel

grado

ACS reagent

Ensayo

≥99.0%

Formulario

powder

impurezas

≤0.002 meq/g water-soluble titr. base
≤0.005% oxidizers
≤0.01% NH4OH pptd.
≤0.01% insol. dil. HCl

pH

8

densidad

2.93 g/mL at 25 °C (lit.)

trazas de anión

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

trazas de catión

Ba: ≤0.005%
Fe: ≤0.003%
K: ≤0.01%
Mg: ≤0.02%
NH4+: ≤0.003%
Na: ≤0.1%
Sr: ≤0.1%
heavy metals: ≤0.001% (by ICP-OES)

cadena SMILES

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

InChI

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

Clave InChI

VTYYLEPIZMXCLO-UHFFFAOYSA-L

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Descripción general

CaCO3 occurs naturally as the principal constituent of limestone, marble, and chalk, which can be prepared by the precipitation from dissolved calcium hydroxide and carbon dioxide.

Aplicación

Calcium carbonate can be used as a precursor to prepare Pd/CaCO3, which can be used as a catalyst:
  • In Miyaura-Suzuki cross-coupling reactions.
  • In the ligand-free Stille cross-coupling reaction between aryl halides and tributylphenyltin to synthesize biphenyls.
It can also be used as a base in the Pd-catalyzed regioselective Heck reaction of fluorinated haloaryls with olefins to synthesize substituted olefins.

Información legal

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

nwg

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Experimental chemistry and atomic modelling studies were performed here to investigate a novel ionic co-substitution in hydroxyapatite (HA). Zinc, silicate co-substituted HA (ZnSiHA) remained phase pure after heating to 1100 °C with Zn and Si amounts of 0.6 wt% and
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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
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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

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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