Cobalt(II) cyanide dihydrate
Cobalt(II) cyanide dihydrate (CAS: 20427-11-6), chemical formula Co(CN)2 · 2H2O, is a chemical compound supplied by Tech Serve Solutions. This pink to red crystalline powder, with a molecular weight of 147.00, finds application as a laboratory reagent and in various chemical synthesis processes. It is handled with significant care due to its toxic nature.

Chemical Synthesis
Cobalt(II) cyanide dihydrate serves as a precursor or reagent in the synthesis of various cobalt-containing compounds and coordination complexes used in research and development.
Laboratory Reagent
Utilised in analytical and research laboratories for specific chemical reactions and testing protocols where a source of cobalt cyanide is required.
Materials Science Research
Investigated for potential applications in materials science, contributing to the development of novel materials with specific electronic or magnetic properties.
| Molecular weight | 147.00 |
|---|---|
| Linear formula | Co(CN)2 · 2H2O |
| Form | powder |


Hazard statements
- H300Fatal if swallowed
- H310Fatal in contact with skin
- H330Fatal if inhaled
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P264Wash thoroughly after handling
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| 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 1588 6.1 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 26/27/28-32-50/53 |
| Safety statements (S) | 7-28-29-45-60-61 |
| Supplemental hazards | Contact with acids liberates very toxic gas. |
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) cyanide dihydrate used for?
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Cobalt(II) cyanide dihydrate is primarily used as a laboratory reagent and in chemical synthesis for producing cobalt-containing compounds and coordination complexes.
What are the CAS number and chemical formula for Cobalt(II) cyanide dihydrate?
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The CAS number is 20427-11-6 and the chemical formula is Co(CN)2 · 2H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cobalt(II) cyanide dihydrate as a technical/research grade powder. We do not represent it as USP, BP, EP, or any other pharmacopoeia grade.
How should Cobalt(II) cyanide dihydrate be handled safely?
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Cobalt(II) cyanide dihydrate is acutely toxic and an environmental hazard. Handle with extreme care using appropriate personal protective equipment (respirators, gloves, eye protection) in a well-ventilated area. Contact with acids liberates very toxic gas. Consult the safety data sheet for full details.
How is Cobalt(II) cyanide dihydrate packed and shipped?
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Cobalt(II) cyanide dihydrate is packed according to relevant regulations for hazardous materials. TSS exports globally, adhering to all international shipping requirements for such chemicals.
How can I request a sample or quote for Cobalt(II) cyanide dihydrate?
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To request a sample or a quote, please contact our sales team via the website or by calling our main office, providing the product name and CAS number (20427-11-6).
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