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Sigma-Aldrich

Cobalt(II) chloride

purum p.a., anhydrous, ≥98.0% (KT)

Sinonimo/i:

Cobalt dichloride, Cobalt muriate, Cobaltous chloride, Dichlorocobalt

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About This Item

Formula condensata:
CoCl2
Numero CAS:
7646-79-9
Peso molecolare:
129.84
Numero CE:
231-589-4
Numero MDL:
MFCD00010938
Codice UNSPSC:
12352302
ID PubChem:
329759237
NACRES:
NA.21

Tensione di vapore

40 mmHg ( 0 °C)

Grado

purum p.a.

Saggio

≥98.0% (KT)

Forma fisica

powder

Impurezze

≤2% water

Punto di fusione

724 °C (lit.)

Anioni in tracce

sulfate (SO42-): ≤50 mg/kg

Cationi in tracce

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Na: ≤200 mg/kg
Ni: ≤1000 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

Stringa SMILE

Cl[Co]Cl

InChI

1S/2ClH.Co/h2*1H;/q;;+2/p-2
GVPFVAHMJGGAJG-UHFFFAOYSA-L

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Descrizione generale

Cobalt(II) chloride is an anhydrous cobalt salt. Cobalt(II) chloride participates in the synthesis of various esters in the presence of acetonitrile.

Applicazioni

Cobalt(II) chloride may be employed as a catalyst in the following studies:
  • Acylation of various alcohols (primary and secondary).
  • Acylation of various hydroxyl compounds (high selectivity).
  • Regioselective ring-opening reaction of oxiranes.
  • Coupling reactions of anhydrides or acid chlorides with thiols.
  • Protection of aldehydes, via chemoselective dithioacetalization reaction.
  • Solvent-free synthesis of β-enaminones and β-enamino esters.
The vapor-phase co-reductions with other metal halides by hydrogen results in finely divided intermetallics with applications as structural materials or compounds with useful thermoelectric, magnetic, and oxidation-resistance properties.

Avvertenze

Danger

Classi di pericolo

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

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

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Cobalt (II) chloride-mediated synthesis of β-enamino compounds under solvent-free conditions.
Zhang ZH and Hu JY.
Journal of the Brazilian Chemical Society, 17(7), 1447-1451 (2006)
Cobalt (II) chloride catalysed cleavage of ethers with acyl halides: Scope and mechanism.
Iqbal J and Srivastava RR.
Tetrahedron, 47(18), 3155-3170 (1991)
Cobalt (II) chloride catalyzed acylation of alcohols with acetic anhydride: scope and mechanism.
Iqbal J and Srivastava RR.
The Journal of Organic Chemistry, 57(7), 2001-2007 (1997)
An unusual chemoselectivity in cobalt (II) chloride catalysed cleavage of oxiranes with anilines: A highly regioselective synthesis of β-amino alcohols.
Iqbal J and Pandey A.
Tetrahedron Letters, 31(4), 575-576 (1990)
Xin Li et al.
Molecular and cellular biology, 40(8) (2020-01-29)
Fibrosis is recognized as the major pathological change in adipose tissue during the development of obesity. However, the detailed mechanisms governing the interactions between the fibrotic components and their modifiers remain largely unclear. Here, we reported that matrix metalloproteinase 14
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