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Merck

403024

Sigma-Aldrich

Cobalt(II) acetate tetrahydrate

ACS reagent, ≥98.0%

Sinónimos:

Cobaltous acetate tetrahydrate

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100 G
US$ 216,00

US$ 216,00

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100 G
US$ 216,00

About This Item

Fórmula lineal:
(CH3COO)2Co · 4H2O
Número de CAS:
Peso molecular:
249.08
Beilstein:
3731397
Número CE:
Número MDL:
Código UNSPSC:
12352103
ID de la sustancia en PubChem:
NACRES:
NB.24

US$ 216,00

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grado

ACS reagent

Nivel de calidad

Ensayo

≥98.0%
98.0-102.0% (ACS specification)

Formulario

crystalline powder
granular

idoneidad de la reacción

reagent type: catalyst
core: cobalt

impurezas

≤0.01% insolubles

trazas de anión

chloride (Cl-): ≤0.002%
nitrate (NO3-): ≤0.01%
sulfate (SO42-): ≤0.005%

trazas de catión

Ca: ≤0.005%
Cu: ≤0.002%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
Na: ≤0.05%
Ni: ≤0.1%
Pb: ≤0.001%
Zn: ≤0.01%

cadena SMILES

[H]O[H].[H]O[H].[H]O[H].[H]O[H].CC(=O)O[Co]OC(C)=O

InChI

1S/2C2H4O2.Co.4H2O/c2*1-2(3)4;;;;;/h2*1H3,(H,3,4);;4*1H2/q;;+2;;;;/p-2

Clave InChI

ZBYYWKJVSFHYJL-UHFFFAOYSA-L

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Aplicación

Cobalt(II) acetate tetrahydrate may be used in the synthesis of the following:
  • cobalt nanoparticles[1]
  • cobalt(II)–aminophenyltetrazolate coordination polymer[2]
  • tricobalt complexes with mixed μ-acetato and μ-pyrazolato ligands[3]

Palabra de señalización

Danger

Clasificaciones de peligro

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1

Código de clase de almacenamiento

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Clase de riesgo para el agua (WGK)

WGK 3


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Mechanism of thermal decomposition of cobalt acetate tetrahydrate.
Wanjun T and Donghua C.
Chemical Papers, 61(4), 329-332 (2007)
Cobalt nanoparticles synthesis from Co(CH3COO)2 by thermal decomposition.
Shao H, et al.
Journal of magnetism and magnetic materials, 304(1), 28-30 (2006)
Eagleson M
Concise Encyclopedia Chemistry, 241-241 (1994)
Eagleson M
Concise Encyclopedia Chemistry, 590-590 (1994)
Tiffany M Smith et al.
Dalton transactions (Cambridge, England : 2003), 43(19), 7263-7268 (2014-04-01)
The hydrothermal reaction of cobalt(II) acetate tetrahydrate, 4-aminophenyl tetrazole and water at 135 °C for 48 hours provided orange crystals of [Co3(OH)2(H2O)2(aptet)4] (1) (aptet = 4-aminophenyltetrazolate). The three-dimensional structure of compound 1 is constructed from chains of corner- and edge-sharing

Questions

1–2 of 2 Questions  
  1. 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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  2. 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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