Potassium cyanide
SIGALD/207810 - ACS reagent, ≥96.0%
CAS Number: 151-50-8
Empirical Formula (Hill Notation): CKN
Molecular Weight: 65.12
EC Number: 205-792-3
MDL Number: MFCD00011397
Linear Formula: KCN
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.5% |
| phosphate (PO43-): ≤0.005% | |
| S2-: ≤0.003% | |
| SCN-: passes test | |
| sulfate (SO42-): ≤0.04% | |
| assay | ≥96.0% |
| cation traces | Fe: ≤0.03% |
| Na: ≤0.5% | |
| Pb: ≤2 ppm | |
| form | granular |
| grade | ACS reagent |
| InChI | 1S/CN.K/c1-2; |
| InChI key | YUZRZFQHUCKACF-UHFFFAOYSA |
| mp | 634 °C (lit.) |
| pH | 11.5 (20 °C, 20 g/L) |
| Quality Level | 200 ![]() |
| SMILES string | [K]C#N |
| solubility | water: soluble(lit.) |
| Application: | Potassium cyanide may be employed in the following studies: • As a reducing agent in the colorimetric determination of amino acids. • Preparation of ferrocylacetonitrile, via reaction with methiodide of N,N-dimethylaminomethylferro • Synthesis of O-acetylcyanohydrins. • Cyanation of aldimines via asymmetric Strecker-type reactions in the presence of chiral phase-transfer catalysts to form α-amino nitriles. • Metal-catalyzed addition of cyanide to 1,2-epoxides to form β-hydroxy nitriles. |
| General description: | Potassium cyanide is a colorless hygroscopic compound. Its crystals exhibit cubic crystal system. It can be prepared by reacting hydrogen cyanide with potassium hydroxide. It participates in benzoin condensation reaction. |
| Packaging: | 2.5 kg in poly bottle |
| Packaging: | 25, 500 g in poly bottle |
| Symbol | ![]() ![]() ![]() GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H290 - H300 + H310 + H330 - H372 - H410 |
| Precautionary statements | P262 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310 - P314 |
| Hazard Codes | T+,N |
| Risk Statements | 26/27/28-32-50/53 |
| Safety Statements | 7-28-29-45-60-61 |
| RIDADR | UN 1680 6.1 / PGI |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH032 |
| Purity | ≥96.0% |
| mp | 634 °C (lit.) |
| UNSPSC | 12352302 |





