Molekula
Cobalt (ll) chloride hexahydrate
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) chloride hexahydrate is a pink crystalline solid used as a moisture indicator, catalyst, and in the production of cobalt-based pigments and catalysts. It is a hydrate form of cobalt chloride with the molecular formula CoCl₂·6H₂O, a molecular weight of 237.93 g/mol, and is stable at ambient storage conditions. It is classified as dangerous due to its toxicity and environmental hazards. Molekula supplies Cobalt(II) chloride hexahydrate 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.
Often bought together
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 — £73.10 per pack ex VAT · £87.72 inc. VAT
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1 kg — £218.30 per pack ex VAT · £261.96 inc. VAT
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 | Red / purple crystals |
| Water insoluble matter | ≤1000 ppm |
| Iron (Fe) | ≤250 ppm |
| Calcium (Ca) | ≤1500 ppm |
| Magnesium (Mg) | ≤80 ppm |
| Nickel (Ni) | ≤1200 ppm |
| Manganese (Mn) | ≤550 ppm |
| Cobalt (Co) | 23.5 - 25.0 % w/w |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 10886286 |
| CAS Number | 7791-13-1 |
| Molecular Formula | CoCl2.6H2O |
| Molecular Weight | 237.93 |
| SMILES | O.O.O.O.O.O.[Cl-].[Cl-].[Co+2] |
| UN Number | UN3077 |
| REACH Code | Y110 |
| Tariff Code | 28273930 |
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
- H350 May cause cancer
- H360 May damage fertility or the unborn child
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P333+313 IF skin irritation or a rash occurs: 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
No alternate names recorded for this product.
Frequently asked questions
What is cobalt(II) chloride hexahydrate used for?
It is commonly used as a moisture indicator in desiccants and as a catalyst in organic synthesis.
What is the chemical formula and molecular weight?
The formula is CoCl2.6H2O with a molecular weight of 237.93 g/mol.
How should cobalt(II) chloride hexahydrate be stored?
Store at ambient temperature in a dry, well-ventilated area away from incompatible materials.
What grade is available?
Available in analytical grade; other grades may be available upon request.
Can Molekula supply it in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.