207810

Potassium cyanide

ACS reagent, ≥96.0%

• Formule linéaire : KCN
• Numéro CAS: 151-50-8
• Poids moléculaire : 65.12
• Numéro Beilstein : 3593645
• Numéro CE : 205-792-3
• Numéro MDL: MFCD00011397
• Code UNSPSC : 12352302
• ID de substance PubChem : 329752024
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Pureté: ≥96.0%
• Forme: granular
• pH: 11.5 (20 °C, 20 g/L)
• Pf: 634 °C (lit.)
• Solubilité: water: soluble(lit.)
• Traces d'anions: S^2-: ≤0.003%; SCN^-: passes test; chloride (Cl^-): ≤0.5%; phosphate (PO₄^3-): ≤0.005%; sulfate (SO₄^2-): ≤0.04%
• Traces de cations: Fe: ≤0.03%; Na: ≤0.5%; Pb: ≤2 ppm
• Chaîne SMILES: [K]C#N
• InChI: 1S/CN.K/c1-2;
• Clé InChI: YUZRZFQHUCKACF-UHFFFAOYSA-N

Description

Description générale

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.

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-dimethylaminomethylferrocene.
• 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.

Informations sur la sécurité

• Pictogrammes: GHS06,GHS08,GHS05,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H290,H300 + H310 + H330,H372,H410
• Conseils de prudence: P262 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310 - P314
• Classification des risques: Acute Tox. 1 Oral - Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Met. Corr. 1 - STOT RE 1
• Organes cibles: Thyroid
• Risques supp: EUH032
• Code de la classe de stockage: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable