Sodium cyanide
Sodium cyanide (CAS: 143-33-9) is a highly toxic inorganic compound with the linear formula NaCN and a molecular weight of 49.01 g/mol. Supplied by Tech Serve Solutions in a p.a. grade with an assay of 95.0%, it is a critical reagent in various industrial processes. Its applications span chemical synthesis, electroplating, and the extraction of precious metals, underscoring its importance in key manufacturing sectors.

Chemical Synthesis
Sodium cyanide serves as a vital reagent and precursor in the synthesis of various organic compounds, including nitriles and pharmaceuticals. It is essential for introducing the cyano group in complex molecular structures.
Electroplating
In the electroplating industry, sodium cyanide is used to create cyanide plating baths. These baths are crucial for depositing metals like gold, silver, copper, and zinc onto substrates, providing a durable and attractive finish.
Metallurgy
It plays a significant role in the extraction and processing of precious metals, particularly gold and silver. Sodium cyanide is used in the cyanidation process to leach these metals from their ores.
Laboratory Reagent
As a research essential, sodium cyanide is utilised in scientific laboratories for analytical procedures and specific chemical research applications where a source of cyanide ions is required.
| Molecular weight | 49.01 |
|---|---|
| Linear formula | NaCN |
| Assay | 95.0% |
| Grade | p.a. |
| Vapour pressure | 1 mmHg (817 °C) |
| Vapour density | 1.7 (vs air) |
| Melting point | 563.7 °C(lit.) |


Hazard statements
- H300Fatal if swallowed
- 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
| Transport (UN / ADR) | UN 1689 6.1 / PGI |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| 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. |
| Cation traces | Fe: ≤0.005%Pb: ≤0.005% |
| Anion traces | S2-: ≤0.005%SCN-: ≤0.02%chloride (Cl-): ≤0.15%phosphate (PO43-): ≤0.02%sulfate (SO42-): ≤0.05% |
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 Sodium Cyanide used for?
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Sodium cyanide is used in chemical synthesis, electroplating, metallurgy for precious metal extraction, and as a laboratory reagent for research.
What are the CAS number and formula for Sodium Cyanide?
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The CAS number for Sodium Cyanide is 143-33-9, and its linear formula is NaCN.
What grade and purity does Tech Serve Solutions supply for Sodium Cyanide?
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Tech Serve Solutions supplies Sodium Cyanide in a p.a. grade with an assay of 95.0%. We do not represent this product as USP, BP, or EP grade.
How should Sodium Cyanide be handled safely?
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Sodium cyanide is extremely toxic. Handle with extreme caution, using appropriate personal protective equipment (PPE) and ventilation. Contact with acids liberates very toxic gas. Refer to the Safety Data Sheet (SDS) for detailed handling and emergency procedures. It carries GHS06 and GHS09 symbols with a Danger signal word.
How is Sodium Cyanide packed and shipped by TSS?
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Sodium cyanide is packed and exported according to stringent international regulations for hazardous materials, including UN 1689 classification.
How can I request a quote or sample of Sodium Cyanide?
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To request a quote or sample of Sodium Cyanide, please contact our sales team through the website or via the provided contact details, specifying your requirements.
Is Sodium Cyanide a controlled substance?
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Sodium cyanide is classified under specific hazard codes in Europe (T+, N) and has associated risk and safety statements, indicating its hazardous nature and need for careful control.
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