Industrial Cobalt Sulphate Heptahydrate, 21% Co, for Electroplating and Pigment Enquiries
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ColorRed-brown
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CAS No.10026-24-1PurityCo 21%
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AppearanceRed-brownApplicationcobalt salt, Lithium battery, Electroplating, Catalyst, Pigment and ceramic
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ClassificationSulphateEINECS No.600-050-9
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Grade StandardIndustrial GradeMolecular FormulaCoSO4*7H2O
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Other NamesCobalt Sulfate Heptahydrate, Cobalt sulfate, Sulfuric acid cobalt saltTypeCobalt Sulfate
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Hs code28332990SolubilityEasily soluble in water
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pH Value3.5 -5.5 (5% solution)DensityApprox. 1.95 g/cm³
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Molecular Weight281.10Packing25kg bag or 1000kg jumbo bag
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StorageStore in a cool, dry place, away from moistureShelf Life2 Years
Electroplating and pigment projects should establish their own acceptance criteria for a cobalt-salt sample. The industrial TY-Cobalt Sulfate Heptahydrate material is red-brown and has formula CoSO4*7H2O. Its stated cobalt content is 21% on an elemental basis.
Give the electroplating enquiry a defined process brief
Describe the intended system and the constituent requirements for the raw material. Request current cobalt and impurity analysis linked to the sample supplied. A general plating application description does not establish bath settings, deposit quality or compatibility with every process.
Assess pigment use through the actual formulation
Specify the composition and the observations used to judge the trial material. Review the sample identity and analytical basis before interpreting process results. Neither elemental cobalt content nor the industrial designation predicts a colour outcome or the performance of a finished pigment.
Read conditioned material properties with their qualifiers
- Solution pH
- The range 3.5–5.5 is reported for a 5% solution; retain that concentration and request the preparation method.
- Approximate density
- The stated value is approximately 1.95 g/cm³; confirm the measurement basis.
- Solubility and storage
- The salt is reported as easily soluble in water, with cool, dry storage away from moisture advised.
The pH measurement describes a material test rather than the operating condition for a plating bath. Cobalt-salt, lithium-battery, catalyst and ceramic enquiries require separate qualification. Keep current technical and handling documents with the sample reports, and judge the actual process results before final selection.
