31277

Cobalt(II) chloride hexahydrate

puriss. p.a., ACS reagent, reag. Ph. Eur., 98-102%

• Synonym(s): Cobaltous chloride hexahydrate
• Linear Formula: CoCl₂ · 6H₂O
• CAS Number: 7791-13-1
• Molecular Weight: 237.93
• EC Number: 231-589-4
• MDL number: MFCD00149652
• UNSPSC Code: 12352302
• PubChem Substance ID: 329753717
• NACRES: NB.24

Properties

• grade: ACS reagent; puriss. p.a.
• Agency: reag. Ph. Eur.
• vapor pressure: 40 mmHg ( 0 °C)
• Assay: 98-102%
• form: solid
• impurities: ≤0.01% water-insoluble matter
• anion traces: nitrate (NO₃^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Ca: ≤50 mg/kg; Cu: ≤20 mg/kg; Fe: ≤50 mg/kg; K: ≤50 mg/kg; Mg: ≤10 mg/kg; Mn: ≤50 mg/kg; Na: ≤100 mg/kg; Ni: ≤500 mg/kg; Pb: ≤5 mg/kg; Zn: ≤25 mg/kg
• SMILES string: O.O.O.O.O.O.Cl[Co]Cl
• InChI: 1S/2ClH.Co.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2
• InChI key: GFHNAMRJFCEERV-UHFFFAOYSA-L

Description

General description

Cobalt(II) chloride hexahydrate is a hydrated form of cobalt chloride. It is used as a catalyst for various organic reactions such as acetylation and tosylation of alcohols, chemoselective reduction of carboxylic esters, and condensation reactions.

Application

Cobalt(II) chloride hexahydrate can be used as a catalyst:      

• To convert various aldoximes into corresponding nitriles in the presence of an inorganic base.      
• To prepare organic-inorganic polyvinylidene fluoride nanofiber composites (PVDF/CoCl₂) for the production of pure hydrogen production from NaBH₄.

It can also be used as a cobalt precursor to synthesize nickel-cobalt-based binary metal phosphide (NiCoP) hollow spheres, which are used for electrocatalysis and energy storage (supercapacitor) applications.

Safety Information

• Pictograms: GHS08,GHS05,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H302,H317,H318,H334,H341,H350i,H360FD,H410
• Precautionary Statements: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: 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
• Storage Class Code: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable