Cobalt(II) nitrate hexahydrate
Cobalt(II) nitrate hexahydrate (CAS: 10026-22-9), with the formula Co(NO3)2 · 6H2O and a molar mass of 291.03 g/mol, is an inorganic salt presenting as a red crystalline solid. It is a key compound in various chemical synthesis processes and finds significant application as a catalyst. This versatile chemical is supplied by Tech Serve Solutions for research and industrial applications requiring a reliable source of cobalt compounds.
- IUPAC
- Cobaltous nitrate hexahydrate,Cobaltous nitrate,Nitric acid, cobalt(II) salt

Catalysis
Cobalt(II) nitrate hexahydrate serves as a precursor in the preparation of heterogeneous and homogeneous catalysts, particularly for oxidation reactions and in Fischer-Tropsch synthesis. Its cobalt content is crucial for promoting various chemical transformations.
Chemical Synthesis
It is employed as a reagent in the synthesis of other cobalt-containing compounds and materials. Its solubility and reactivity make it a convenient source of cobalt ions for complexation and precipitation reactions.
Pigment Production
Historically, cobalt compounds have been used in the creation of blue pigments. Cobalt(II) nitrate can be a precursor in the manufacturing of certain inorganic colorants.
Electroplating
Cobalt salts, including the nitrate, can be components in electroplating baths for depositing cobalt or cobalt alloy coatings, imparting properties such as hardness and corrosion resistance.
| Molecular weight | 291.03 |
|---|---|
| Linear formula | Co(NO3)2 · 6H2O |
| Assay | ≥98.0% |
| Grade | purum p.a. |
| Melting point | 55 °C(lit.) |




Hazard statements
- H272May intensify fire; oxidiser
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H334May cause allergy or asthma symptoms if inhaled
- H341Suspected of causing genetic defects
- H350I
- H360May damage fertility or the unborn child
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P220Keep away from clothing and combustible materials
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P308IF exposed or concerned
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1477 5.1/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | O,T,N |
| Risk statements (R) | 49-60-8-20-42/43-50/53-68 |
| Safety statements (S) | 53-45-60-61 |
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 Cobalt(II) nitrate hexahydrate used for?
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Cobalt(II) nitrate hexahydrate is primarily used in catalysis, chemical synthesis, and potentially in the production of pigments and electroplating solutions.
What are the CAS number and chemical formula for Cobalt(II) nitrate hexahydrate?
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The CAS number is 10026-22-9 and the chemical formula is Co(NO3)2 · 6H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cobalt(II) nitrate hexahydrate in 'purum p.a.' grade with an assay of ≥98.0%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should Cobalt(II) nitrate hexahydrate be handled safely?
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Cobalt(II) nitrate hexahydrate is an oxidiser and is harmful if swallowed, may cause an allergic skin reaction, may cause allergy or asthma symptoms or breathing difficulties if inhaled, is suspected of causing genetic defects, is suspected of causing cancer by inhalation, may damage fertility or the unborn child, and is very toxic to aquatic life with long lasting effects. Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator in a well-ventilated area. Avoid dust formation and contact with incompatible materials.
How is Cobalt(II) nitrate hexahydrate packed and shipped?
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Cobalt(II) nitrate hexahydrate is packed in compliance with transport regulations. As an oxidiser (UN 1477, Class 5.1, Packing Group II), it is shipped carefully to ensure safe delivery globally by Tech Serve Solutions.
How can I request a quote or sample for Cobalt(II) nitrate hexahydrate?
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To request a quote or a sample, please contact the Tech Serve Solutions sales team via our website or direct contact details. We aim to respond promptly to all inquiries.
Is Cobalt(II) nitrate hexahydrate a controlled substance?
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The provided data does not indicate that Cobalt(II) nitrate hexahydrate is a specifically scheduled or controlled substance under standard chemical regulations, but its hazards require careful management.
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