Cobalt Chloride
 (1).png)
Product Code : SCL-LC-12200
Cobalt Chloride (SKU SCL-LC-12200), or cobalt(II) chloride, is an inorganic cobalt salt known for changing colour as it gains or loses water, which makes it a classic moisture-indicator reagent. Supervised chemistry labs, colleges and analytical laboratories also use it for cobalt-salt studies and solution work. Because cobalt compounds are sensitisers, it needs trained handling. Science Lab Supplies delivers it from Ambala, India to schools, colleges, tender contractors and distributors.
Specifications
The anhydrous salt is CoCl2 and the common hexahydrate is CoCl2·6H2O; the two differ in colour, molecular weight and handling. The hydrate form, grade and net weight in your batch are printed on the label and stated on the quotation, so solution strengths can be calculated correctly.
| Parameter | Value |
|---|---|
| SKU | SCL-LC-12200 |
| Other names | Cobalt(II) chloride, cobaltous chloride |
| Formula | CoCl2 (anhydrous); CoCl2·6H2O (hexahydrate) |
| CAS number (as commonly listed) | 7646-79-9 anhydrous; 7791-13-1 hexahydrate |
| Hazards | Sensitiser; carcinogenic and reproductive-toxicity concerns |
| Hydrate form, grade, pack size | As stated on label and quotation |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for Cobalt Chloride
Dry cobalt chloride is blue and turns pink as it takes up water, so teachers use it to detect water and show reversible hydration. The salt also supports transition-metal chemistry, solution preparation and analytical procedures that name cobalt chloride, always under supervision and with PPE.
- School chemistry: the cobalt chloride test for water and reversible hydration.
- Class 12 chemistry: d-block elements, coloured ions and complex formation.
- B.Sc. inorganic practicals on cobalt(II) salts and equilibrium colour changes.
- Training in hazardous-reagent labelling, weighing and waste handling.
Standard Scope of Supply
Supplied as the cobalt chloride container in the quoted pack size, with a label giving batch, grade and hydrate form, the Safety Data Sheet, and outer packaging with a tamper seal and export documents. Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted.
Packing, MOQ and Lead Time
Quotations can be for a single pack or a multi-lab stock order, and each lists the packing, delivery time and price for the quantity stated. Other transition-metal salts and chemistry lab equipment in India can be included so one document covers the requirement.
As a registered exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Zambia, Rwanda, South Africa, Qatar, Sri Lanka and Vietnam. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). To ask for a price, use the contact page or the enquiry cart; the lab tender page explains tender supply.
Frequently Asked Questions
Is cobalt chloride hazardous?
Yes. It may cause skin sensitisation and asthma after repeated exposure and carries carcinogenic and reproductive-toxicity concerns. Handle it with gloves, eye protection and dust control, and never pour cobalt residues into drains.
Why does cobalt chloride change colour?
The anhydrous salt is blue and the hydrated salt is pink. Adding or removing water switches between them, which is why it is used as a moisture indicator.
Who supplies the Cobalt Chloride?
This salt is supplied from Ambala, India by Science Lab Supplies, a laboratory chemicals supplier in India, with hydrate form, grade and pack size confirmed on each quotation.
Can school laboratories keep cobalt chloride?
Only school or college laboratories with trained supervision, restricted storage, Safety Data Sheet access, PPE and a route for cobalt-containing waste should keep and use it.
Related Metal Salts and Drying Agents
These four reagents from the same range sit naturally beside cobalt chloride: two further transition-metal salts for colour and complex work, a copper chloride for comparison, and a hygroscopic calcium salt for drying and desiccation experiments.
- Nickel Sulphate — nickel(II) salt for transition-metal and solution studies.
- Cupric Chloride Lab — copper(II) chloride, CuCl2, for inorganic teaching.
- Manganese Sulphate — inorganic manganese salt for teaching and analysis.
- Calcium Chloride Fussed (CaCl2) — hygroscopic salt for drying and desiccation.
Browse the full Lab Chemicals range or all school lab equipment.
Last updated: 25 September 2026
 (1).png)
 (1).png)
-Photoroom (1).png)
 (1).png)
.png)
.png)
 (1).png)
 (1).png)