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    Cobalt (II) Chloride

    Cobalt (II) Chloride in Tradeasia

    IUPAC Name

    Dichlorocobalt

    Cas Number

    7646-79-9

    HS Code

    28276090

    Formula

    CoCl2

    Industry

    -

    Basic Info

    Appearance

    Sky blue powder

    Common Names

    Cobaltchloride; Cobalt chloride 0.1 M solution; MFCD00010938;

    Packaging

    800 @ 25kg net PP bag, 25 MT / 20FCL

    Brief Overview

     

    Cobalt(II) chloride is an inorganic compound of cobalt and chlorine, with the formula CoCl2 and sky blue in colour. It is most commonly supplied as the hexahydrate CoCl2·6H2O, which is pink in colour. Concentrated aqueous solutions are red at room temperature but become blue at higher temperatures. CoCl2·6H2O is deliquescent while the anhydrous salt CoCl2 is hygroscopic.

     

    Manufacturing Process

     

    Hydrated cobalt chloride is manufactured from reaction of cobalt(II) hydroxide or cobalt(II) carbonate with hydrochloric acid according to the reactions below:

    CoCO3 + 2 HCl + 5 H2O → Co(H2O)6Cl2 + CO2

    Upon heating, the hexahydrate dehydrates. Dehydration can also be effected with trimethylsilyl chloride:

    CoCl2•6H2O + 12 Me3SiCl → CoCl2 + 6 (Me3Si)2O + 12 HCl

    Painting and printing Industry: Used as a catalyst, printing and dyeing mordant.

     

    Chemical Industry: Used as an analytical reagent.

     

    Other Applications:

     

    • Used as a necessary catalyst in synthetic fiber industry

     

    • ceramic pigment, glaze ingredients, cobalt glass curing agent

     

    • Also used in surface treatment in aluminium as hiding color ink.

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