Molekula
Potassium cyanide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Potassium cyanide is a highly toxic inorganic salt with the chemical formula KCN, primarily used in gold mining, electroplating, and chemical synthesis due to its strong cyanide properties. It is also employed in pest control and as a laboratory reagent. This chemical has a CAS number of 151-50-8, a molecular weight of 65.12, and requires ambient storage. It carries a Danger signal word due to its extreme toxicity. Molekula supplies Potassium cyanide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White solid |
| Assay | ≥ 97.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | I |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White cubic crystals |
| Odour | Faint odor of bitter almonds |
| Melting Point | 634 °C |
| Boiling Point | 1625 °C |
| Vapour Pressure | 0 mmHg (approx) |
| Refractive Index | 1.410 |
Source: PubChem CID 9032 (HSDB, ICSC, The National Institute for Occupational Safety and Health (NIOSH))
Identification
| Property | Value |
|---|---|
| SKU | 19340575 |
| CAS Number | 151-50-8 |
| IUPAC Name | potassium cyanide |
| EC Number | 205-792-3 |
| Molecular Formula | KCN |
| Molecular Weight | 65.12 |
| Exact Mass | 64.9668 |
| SMILES | [C-]#N.[K+] |
| InChIKey | NNFCIKHAZHQZJG-UHFFFAOYSA-N |
| InChI | InChI=1S/CN.K/c1-2;/q-1;+1 |
| PubChem CID | 9032 |
| UN Number | UN1680 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2837.19.0110 |
| Tariff Code | 2837190090 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- EUH032 Contact with acids liberates very toxic gas
- H290 May be corrosive to metals
- H300 +H310 + H330 Fatal if swallowed, in contact with skin or if inhaled
- H361 Suspected of damaging fertility or the unborn child
- H372 Causes damage to organs through prolonged or repeated exposure
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P202 Do not handle until all safety precautions have been read and understood
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish, Swedish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Cyanide of potassium
- Cyanure de potassium
- EPA Pesticide Chemical Code 599600
- Hydrocyanic acid, potassium salt
- KALI CYANATUM
- kalium cyanid
- M-44 capsules (potassium cyanide)
- Potassium cyanide (K(CN))
- potassiumcarbonitrile
- RCRA waste number P098
Frequently asked questions
What is potassium cyanide commonly used for?
Potassium cyanide is primarily used in gold and silver mining (leaching), electroplating, and as a cyanide source in organic synthesis, for example to prepare nitriles from alkyl halides and to form cyanohydrins from aldehydes and ketones.
What is the chemical formula and molecular weight of potassium cyanide?
The chemical formula is KCN, and the molecular weight is 65.12 g/mol.
How should potassium cyanide be stored?
Store in a cool, dry place at ambient temperature, away from incompatible substances (e.g., acids, oxidizers), and under proper ventilation to prevent exposure.
What grades or purity levels of potassium cyanide does Molekula supply?
Molekula supplies technical-grade potassium cyanide (typically ≥95% purity) for industrial applications; higher-purity grades may be available upon request.
Can Molekula supply potassium cyanide in bulk quantities?
Yes, we offer bulk packaging options (e.g., 25 kg drums, 50 kg bags) for large-scale industrial customers—contact us for specific availability and lead times.
What documentation comes with a potassium cyanide order?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a Material Safety and Handling Guide to ensure compliance with regulatory and safety standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.