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255599

Sigma-Aldrich

氯化钴 六水合物

ACS reagent, 98%

同義詞:

氯化钴 六水合物

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About This Item

線性公式:
CoCl2 · 6H2O
CAS號碼:
分子量::
237.93
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21
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等級

ACS reagent

蒸汽壓力

40 mmHg ( 0 °C)

化驗

98%
98.0-102.0% (ACS specification)

形狀

powder, crystals or chunks

反應適用性

reagent type: catalyst
core: cobalt

雜質

≤0.01% insolubles

負離子痕跡

nitrate (NO3-): ≤0.01%
sulfate (SO42-): ≤0.01%

正離子痕跡

Ca: ≤0.005%
Cu: ≤0.002%
Fe: ≤0.005%
K: ≤0.01%
Mg: ≤0.005%
Na: ≤0.05%
Ni: ≤0.1%
Zn: ≤0.03%

SMILES 字串

O.O.O.O.O.O.Cl[Co]Cl

InChI

1S/2ClH.Co.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2

InChI 密鑰

GFHNAMRJFCEERV-UHFFFAOYSA-L

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一般說明

六水氯化钴(II),也称为六水氯化钴,是钴和氯的水合形式。它是由八面体配合物组成的结晶固体,其中Co2+离子的配位多面体包括4个H2O分子和2个Cl离子。六水氯化钴极易溶于水,通常用作各种有机合成的催化剂,如苯并咪唑和双香豆素衍生物的合成。 [1]

應用

六水合氯化钴(II)可作为催化剂用于:
  • 苯乙烯与 N-羟基邻苯二胺双氧化合成相应的醇类和酮类。
  • 伯胺与亚胺的氧化偶联。
  • 吲哚与活化烯烃发生弗里德尔-克拉夫茨反应,以合成 β-吲哚酮。
  • β-胺酮和 β-胺酯的合成。
  • 酰基氯化物与二硒化物或二硫化物的反应,以合成硒醇和硫醇酯。

訊號詞

Danger

危險分類

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

儲存類別代碼

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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分析證明 (COA)

Lot/Batch Number

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存取文件庫

Cobalt (II) Chloride Hexahydrate as an Efficient and Inexpensive Catalyst for the Preparation of Biscoumarin Derivatives.
Mohammad Reza N, et al.
Advances in Chemistry, 1-6 null
A simple and convenient one-pot synthesis of benzimidazole derivatives using cobalt (II) chloride hexahydrate as catalyst
Abu K T, et al.
Synthetic Communications, 39, 2339-2346 (2009)
CoCl2. 6H2O crystal growth and its spectral characteristics
Diana Sergeevna M, et al.
Optical Materials, 144, 114339-114339 (2023)
Electronic absorption spectra of tetragonal and pseudotetragonal cobalt (II). II. Cobalt chloride hexahydrate and cobalt chloride hexahydrate-d12.
Ferguson J and Wood TE.
Inorganic Chemistry, 14(1), 184-189 (1975)
Water soluble nickel (0) and cobalt (0) nanoclusters stabilized by poly (4-styrenesulfonic acid-co-maleic acid): highly active, durable and cost effective catalysts in hydrogen generation from the hydrolysis of ammonia borane.
Metin O and Ozkar S.
International Journal of Hydrogen Energy, 36(2), 1424-1432 (2011)

Questions

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  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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