Analytical Grade Cobalt Chloride
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Product Code : SCL-CA-12644
Quick Answer: The Analytical Grade Cobalt Chloride is a cobalt(II) chloride reagent used under supervision for cobalt-ion studies, hydration and dehydration colour-change demonstrations, solution preparation and specified chemical analysis.
Last updated: October 2026
Key Features
- Anhydrous CoCl2, CAS 7646-79-9, molecular weight about 129.84 g/mol
- Hexahydrate CoCl2·6H2O, molecular weight 237.93 g/mol
- Colour changes with hydration, used in moisture-indicator demonstrations
- Supports teaching on transition-metal salts and hydrate chemistry
- Hazard-controlled, with cobalt-containing waste collected separately
Technical Specifications
| Specification | Value |
|---|---|
| Chemical name | Cobalt(II) chloride |
| Formula, anhydrous | CoCl2 |
| Formula, hexahydrate | CoCl2·6H2O |
| Molecular weight, anhydrous | About 129.84 g/mol |
| Molecular weight, hexahydrate | 237.93 g/mol |
About This Product
Cobalt chloride gives a visible link between water of crystallisation and colour, which is why it is used to demonstrate hydration and dehydration. Since the hydrate form changes both colour and molecular weight, the form on the label is identified before weighing. Splash goggles, gloves and a lab coat are worn, dust and skin contact are avoided, and access is restricted. The Analytical Grade Cobalt Chloride is available for supply within India and for export to Portugal, Burkina Faso, Haiti, Vietnam and Vanuatu.
Frequently Asked Questions
Q1. Why does cobalt chloride change colour?
Its colour depends on its hydration state, so gaining or losing water of crystallisation changes the colour. This is the basis of moisture-indicator demonstrations.
Related: Chemical Analysis, Laboratory Zinc Chloride, Nickel Sulphate Reagent.
For a quotation on the Analytical Grade Cobalt Chloride, contact School Equipments India.
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