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239267

Sigma-Aldrich

Cobalt(II) nitrate hexahydrate

ACS reagent, ≥98%

Sinônimo(s):

Cobaltous nitrate, Cobaltous nitrate hexahydrate, Nitric acid, cobalt(II) salt

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5 G
R$ 281,00
100 G
R$ 422,00
500 G
R$ 1.679,00

R$ 281,00


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5 G
R$ 281,00
100 G
R$ 422,00
500 G
R$ 1.679,00

About This Item

Fórmula linear:
Co(NO3)2 · 6H2O
Número CAS:
Peso molecular:
291.03
Número MDL:
Código UNSPSC:
12352302
ID de substância PubChem:
NACRES:
NA.21

R$ 281,00


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grau

ACS reagent

Nível de qualidade

Ensaio

≥98%
98.0-102.0%

Formulário

chips
powder, crystals or chunks
solid

adequação da reação

reagent type: catalyst
core: cobalt

Impurezas

≤0.01% insolubles

pH

4 (20 °C, 100 g/L)

pf

55 °C (lit.)

traços de ânion

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

traços de cátion

Ca: ≤0.005%
Cu: ≤0.002%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
NH4+: ≤0.2%
Na: ≤0.05%
Ni: ≤0.15%
Pb: ≤0.002%
Zn: ≤0.01%

cadeia de caracteres SMILES

O.O.O.O.O.O.[Co++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Co.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;

chave InChI

QGUAJWGNOXCYJF-UHFFFAOYSA-N

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Descrição geral

Cobalt(II)nitrate hexahydrate is a red-brown crystalline structure that is soluble in water and organic solvents. It is commonly used in the preparation of cobalt-based catalysts, pigments, chemicals, and vitamin B12 preparations. Additionally, it serves high-purity cobalt source for use in the electronics industry. [1] [2]

Aplicação

Cobalt(II)nitrate hexahydrate can be used as a catalyst to synthesize:
  • 5-Carboxanilide-dihydropyrimidinone derivatives by the condensation of acetoacetanilides, aldehydes, and urea/thiourea.
  • Nitro indoles by the nitration of indoles using tert-butyl nitrite as the nitro source.
  • Quinazolinones from 2-aminobenzonitriles using alcohols in the presence of phosphine ligand.

Palavra indicadora

Danger

Classificações de perigo

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Muta. 2 - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1 - STOT RE 2 Inhalation

Órgãos-alvo

Lungs

Código de classe de armazenamento

5.1B - Oxidizing hazardous materials

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Questions

1–3 of 3 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

      Helpful?

  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

      Helpful?

  3. 239267와 관련하여 입자크기를 알 수 있을까요? 저희가 원하는 사이즈는 <10μm 이하의 파우더를 구입하고 싶습니다 해당되는 스펙의 파우더가 있다면 알려주시기 바랍니다

    1 answer
    1. Particle size testing is not performed on this product and there are no options for cobalt(II) nitrate hexahydrate with particle size testing. Please consider grinding to the appropriate particle size.

      Helpful?

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