Molekula
Cobalt (II) sulfate heptahydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Cobalt(II) sulfate heptahydrate is a blue crystalline solid used in electroplating, catalyst production, and as a precursor in the synthesis of other cobalt compounds. It also serves as a cobalt source in fertilizers and soil amendments and as an industrial processing aid. It is available in research, pilot, and bulk quantities. CAS: 10026-24-1, Molecular formula: CoO4S · 7H2O, Molecular weight: 281.10 g/mol, Storage: Ambient, Signal word: Danger. Molekula supplies Cobalt (II) sulfate heptahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — $69.70 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Dark red powder |
| Assay | >99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 96.8 °C |
| Boiling Point | 420 °C |
Source: PubChem CID 61444 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 70639815 |
| CAS Number | 10026-24-1 |
| IUPAC Name | cobalt(2+);sulfate;heptahydrate |
| Molecular Formula | CoO4S · 7H2O |
| Molecular Weight | 281.10 |
| Exact Mass | 280.9589 |
| SMILES | O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Co+2] |
| InChIKey | MEYVLGVRTYSQHI-UHFFFAOYSA-L |
| InChI | InChI=1S/Co.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2 |
| PubChem CID | 61444 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| HTS Code | 2833.29.1000 |
| Tariff Code | 2833293000 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H341 Suspected of causing genetic defects
- H350i May cause cancer by inhalation
- H360F May damage fertility
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P201 Obtain special instructions before use
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- COBALT SULFATE HEPTAHYDRATE
- Cobalt sulphate heptahydrate
- cobalt(2+) sulfate heptahydrate
- cobalt(2+) sulfate--water (1/7)
- Cobalt(II) sulfate (1:1), heptahydrate
- Cobalt(II) sulphate heptahydrate
- Cobaltous sulfate heptahydrate
- COBALTOUS SULPHATE HEPTAHYDRATE
- Cobaltum Sulphuricum
- Sulfuric acid, cobalt(2+) salt (1:1), heptahydrate (8CI,9CI)
Frequently asked questions
What is Cobalt (II) sulfate heptahydrate used for?
It is used as a catalyst in chemical reactions, in the production of cobalt-based pigments, and as a precursor in the synthesis of other cobalt compounds.
What is the chemical formula and molecular weight?
The formula is CoO4S · 7H2O with a molecular weight of 281.10 g/mol.
How should Cobalt (II) sulfate heptahydrate be stored?
It should be stored at ambient temperature, in a dry, well-ventilated area, away from incompatible materials.
What grade is available?
We offer reagent grade and technical grade; please specify your requirement when ordering.
Can Molekula supply it in bulk?
Yes, we can supply Cobalt (II) sulfate heptahydrate in bulk quantities—contact us for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.