Ammonium cobalt(II) sulfate hexahydrate
Ammonium cobalt(II) sulfate hexahydrate (CAS: 13586-38-4) is a crystalline inorganic salt with the formula (NH4)2Co(SO4)2 · 6H2O and a molecular weight of 395.23 g/mol. This cobalt salt typically presents as pink crystals or lumps and finds use as a laboratory reagent. It is employed in chemical synthesis and catalysis, particularly within inorganic chemistry and materials science research.

Catalysis and Inorganic Synthesis
This compound serves as a source of cobalt ions for various catalytic applications and inorganic synthesis reactions. Its defined composition makes it suitable for research into new materials and chemical processes.
Materials Science Research
Ammonium cobalt(II) sulfate hexahydrate is utilized in the development and characterisation of novel materials. It can be incorporated into formulations or used as a precursor in the synthesis of specific metal-containing compounds.
Laboratory Reagent
As a standard inorganic salt, it functions as a versatile laboratory reagent for analytical and experimental purposes. It is commonly found in research settings requiring a soluble cobalt salt.
| Molecular weight | 395.23 |
|---|---|
| Linear formula | (NH4)2Co(SO4)2 · 6H2O |
| Assay | 99% |
| Form | crystals and lumps |
| Density | 1.902 g/mL at 25 °C(lit.) |
| Melting point | 120 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/22-36/37/38-43 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Ammonium cobalt(II) sulfate hexahydrate used for?
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Ammonium cobalt(II) sulfate hexahydrate is used in catalysis, inorganic synthesis, materials science research, and as a general laboratory reagent.
What is the CAS number and formula for Ammonium cobalt(II) sulfate hexahydrate?
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The CAS number is 13586-38-4 and the linear formula is (NH4)2Co(SO4)2 · 6H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ammonium cobalt(II) sulfate hexahydrate with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling Ammonium cobalt(II) sulfate hexahydrate?
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This compound is harmful if swallowed or inhaled, causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation, and may cause respiratory irritation. Appropriate personal protective equipment, including a dust mask (N95), eyeshields, face shields, and gloves, is essential. Handle in a well-ventilated area and avoid dust formation.
How is Ammonium cobalt(II) sulfate hexahydrate packed and exported?
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Our chemicals are carefully packed to ensure safe transit and are available for export globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or a sample of Ammonium cobalt(II) sulfate hexahydrate, please contact our sales team via the website.
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