Mercury(II) tetrathiocyanatocobaltate(II)
Mercury(II) tetrathiocyanatocobaltate(II), CAS 27685-51-4, with the linear formula HgCo(SCN)₄, is a chemical compound with a molecular weight of 491.85. It is supplied by Tech Serve Solutions as a powder and chunks. This material serves as a high-purity standard for magnetic susceptibility measurements and is utilised in various chemical synthesis and materials science applications. Its distinctive properties make it valuable in specific research and industrial contexts.
- IUPAC
- Cobalt(II) tetrathiocyanatomercurate(II),Mercury thiocyanatocobaltate(II)
- Synonyms
- Cobalt(II) tetrathiocyanatomercurate(II)Mercury thiocyanatocobaltate(II)

Magnetic Susceptibility Standard
This compound is recognised for its utility as a high-purity standard in magnetic susceptibility measurements. Its well-defined magnetic properties allow for accurate calibration of instruments and reliable experimental data in physics and chemistry research.
Chemical Synthesis
Mercury(II) tetrathiocyanatocobaltate(II) can be employed as a reagent or precursor in specialised chemical synthesis pathways. Its inclusion in synthetic routes may facilitate the formation of novel inorganic or coordination compounds.
Materials Science
Within materials science, this compound's unique structure and properties lend themselves to investigations into new materials with specific magnetic or optical characteristics. It can be a component in the development of advanced functional materials.
| Molecular weight | 491.85 |
|---|---|
| Linear formula | HgCo(SCN)4 |
| Form | powder and chunks |
| Application | High-purity magnetic-susceptibility standard |



Hazard statements
- H300Fatal if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H373May cause damage to organs through prolonged exposure
- 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, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2025 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 26/27/28-33-50/53 |
| Safety statements (S) | 13-28-45-60-61 |
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 Mercury(II) tetrathiocyanatocobaltate(II) used for?
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Mercury(II) tetrathiocyanatocobaltate(II) is primarily used as a high-purity standard for magnetic susceptibility measurements. It also finds applications in chemical synthesis and materials science.
What are the CAS number and chemical formula for Mercury(II) tetrathiocyanatocobaltate(II)?
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The CAS number is 27685-51-4, and the linear chemical formula is HgCo(SCN)₄.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Mercury(II) tetrathiocyanatocobaltate(II) as a powder and chunks. The specific assay or purity is available upon request; TSS does not represent this product as USP, BP, or EP grade unless explicitly stated.
What are the main safety concerns when handling Mercury(II) tetrathiocyanatocobaltate(II)?
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This compound is classified as acutely toxic if swallowed, in contact with skin, or if inhaled (H300+H310+H330). It can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Prolonged or repeated exposure may cause damage to organs through prolonged or repeated exposure (H373). It is also very toxic to aquatic life with long-lasting effects (H410). Appropriate personal protective equipment, including eyeshields, faceshields, gloves, and suitable respirator cartridges, must be used. Handle with extreme caution in a well-ventilated area.
How is Mercury(II) tetrathiocyanatocobaltate(II) packed, shipped, and exported?
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Mercury(II) tetrathiocyanatocobaltate(II) is packed and shipped in compliance with all relevant transport regulations. As a globally recognised supplier, Tech Serve Solutions has extensive experience in exporting chemicals worldwide.
How can I request a quote or sample for Mercury(II) tetrathiocyanatocobaltate(II)?
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To request a quote or sample, please contact our sales department via the website or direct telephone. Our team will be pleased to assist you with your specific requirements.
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