255599

Cobalt(II) chloride hexahydrate

ACS reagent, 98%

• Synonyma: Cobaltous chloride hexahydrate
• Lineární vzorec: CoCl₂ · 6H₂O
• Číslo CAS: 7791-13-1
• Molekulová hmotnost: 237.93
• EC Number: 231-589-4
• MDL number: MFCD00149652
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752799
• NACRES: NA.21

Vlastnosti

• grade: ACS reagent
• vapor pressure: 40 mmHg ( 0 °C)
• assay: 98%; 98.0-102.0% (ACS specification)
• form: powder, crystals or chunks
• reaction suitability: reagent type: catalyst; core: cobalt
• impurities: ≤0.01% insolubles
• anion traces: nitrate (NO₃^-): ≤0.01%; sulfate (SO₄^2-): ≤0.01%
• cation traces: 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 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

Popis

General description

Cobalt(II) chloride hexahydrate, also known as cobaltous chloride hexahydrate, is a hydrated form of cobalt and chloride. It is a crystalline solid consisting of octahedral complexes, with the coordination polyhedron of the Co²⁺ ion including four H₂O molecules and two Cl⁻ ions. It is highly soluble in water and is commonly used as a catalyst in various organic synthesis, such as during the synthesis of benzimidazole and biscoumarin derivatives.

Application

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

• Dioxygenation of styrenes with N-hydroxyphthalimide to synthesize corresponding alcohols and ketones.
• Oxidative coupling of primary amines to imines.
• Friedel-Crafts reaction between indoles and activated olefins to synthesize β-indolylketones.
• Synthesis of β-enaminones and β-enamino esters.
• Reaction of acyl chlorides with diselenides or disulfides to synthesize selenol and thiol esters.

Bezpečnostní informace

• pictograms: GHS08,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H317,H318,H334,H341,H350i,H360FD,H410
• pcodes: 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: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable