Cobalt Sulfate Heptahydrate for Surface Treatment
If you source cobalt sulfate heptahydrate for surface treatment, keep the hydrate identity and cobalt-content basis together.
Relia's listed crystals can be reviewed for dissolution, impurities and the intended application.
- Identity
- CoSO4·7H2O proposal
- Cobalt
- Metal assay and method
- Impurities
- Relevant metal limits
From Your Requirement to a Defined Grade
Relia manufactures cobalt sulfate materials in China through its own factories.
We can review the cobalt sulfate enquiry with your surface-treatment process and accepted specification. Give us the heptahydrate requirement, cobalt-content basis and critical impurity limits. The material proposal should remain tied to that use and grade, with a defined dissolution or bath trial where your process requires it.
Identity
CoSO4·7H2O proposal
Cobalt
Metal assay and method
Process
Dissolution and insoluble matter
Impurities
Relevant metal limits
The Surface-Treatment Task
The cobalt-sulfate entries describe heptahydrate with 21% cobalt. The metal percentage and hydrate identity belong together; 21% Co is not a 21% salt-purity statement. We keep actual impurity limits and intended use explicit before proposing a plating, catalyst or other industrial sample.
CoSO4·7H2O proposal
Metal assay and method
Relevant metal limits
Cobalt Sulfate with a Defined Hydrate and Metal Basis
| Review area | Listed data and acceptance basis | Use in your selection |
|---|---|---|
| Heptahydrate · 6231 | The title states Co 21% for industrial material trials. Confirm actual assay and trace impurities for the offered grade. | Keep chemical identity, assay basis and the actual offered grade in the same specification. |
| Heptahydrate · 6234 | A separate entry also carrying Co 21%. Battery-related use wording does not establish battery-grade acceptance. | Keep chemical identity, assay basis and the actual offered grade in the same specification. |
| Industrial entry · 6245 | Another 21% Co listing for supply and sample enquiries. Request the specific batch analysis and hydrate confirmation. | Keep chemical identity, assay basis and the actual offered grade in the same specification. |
| Qualification scope | Set the cobalt basis, hydrate, required impurity limits and the actual process acceptance before comparing quotations. | Identify exactly what the percentage measures before normalising quotations or dosage. |
Compare the Product Candidates
Use these listed candidates to start a grade-specific discussion with us.
Dissolution and Relevant Impurities
Your team should evaluate the defined offered grade in the intended industrial process. Retain cobalt content, hydrate identity and relevant trace analysis with the results. We keep a battery-material enquiry separate from an established battery-grade approval when the required impurity evidence is not available.
Co percentage
Is not the salt-purity figure.
Hydration changes
Alter the comparison basis.
Broad applications
Need separate approval.
Purification and Heptahydrate Crystallisation
Solution purification determines which impurities enter crystallisation; crystal separation and finishing influence the supplied heptahydrate condition. A crystal can carry impurities in different ways, so colour or a total cobalt figure cannot establish the full grade. Connect the offered hydrate, metal-content and impurity data with the actual process evaluation.
Define the sulfate solution
The feed chemistry and impurity requirements are established before crystal formation.
Purify for the required grade
Upstream separation addresses impurities that later finishing may not remove.
Crystallise and separate
Crystal formation and solid–liquid separation affect the impurity and physical condition of the product.
Retain the hydrate identity
Finishing and storage must be considered with the heptahydrate and actual cobalt-content specification.
- Hydration
- Keep CoSO4·7H2O identity with the proposed material.
- Impurities
- A total cobalt figure does not replace individual impurity results.
- Use
- Surface treatment requires its own acceptance and should not inherit a battery-grade claim.
Repeat Supply with Identity
Retain the accepted sample, hydration statement and batch analysis with the proposed grade. We discuss supply against that record. A change in composition or source can then be assessed with a clear reference.
Continue Your Material Selection
If you need basic nickel carbonate for plating chemicals or nickel-salt production, buy against a defined nickel-content and impurity specification.
If a promising sample needs to become a repeat purchase, make the approval record as clear as the trial result.
If you buy a 1000 L IBC for a chemical liquid, choose the complete tank, valve, seal and pallet configuration for that liquid.
Start with Your Material Brief
Send us the details below to review a concrete grade proposal and the next evaluation step.
- Application and process
- Identity: CoSO4·7H2O proposal
- Material and grade
- Your current grade or one of the relevant product links above.
- Important requirements
- Cobalt: Metal assay and method; Impurities: Relevant metal limits
- Purchase scope
- Trial or order quantity, preferred package and destination.
Qingdao Relia Industries Co., Ltd. · China manufacturing of industrial minerals, chemicals and the listed packaging products.
10 / 11Speak with Our Materials Team
Qingdao Relia Industries Co., Ltd.
Tell Relia the material, application, required grade, quantity and destination. Include the product link or the key limits you already use, so the next conversation starts with a concrete proposal.
Phone
+86 18561762631Call to discuss your enquiry.Qingdao contact address
Shuyuan Road, Qingdao,Shandong, ChinaQingdao contact address for the company.
