205222

Sodium cyanide

ACS reagent, ≥95.0%

• Linear Formula: NaCN
• CAS Number: 143-33-9
• Molecular Weight: 49.01
• Beilstein/REAXYS Number: 3587243
• EC Number: 205-599-4
• MDL number: MFCD00003523
• UNSPSC Code: 12352300
• PubChem Substance ID: 329752009
• NACRES: NB.24

Properties

• grade: ACS reagent
• Quality Level: 200
• vapor density: 1.7 (vs air)
• vapor pressure: 1 mmHg ( 817 °C)
• assay: ≥95.0%
• form: crystalline powder; powder, crystals or chunks
• pH: 11-12 (25 °C, 49 g/L)
• mp: 563.7 °C (lit.)
• solubility: water: soluble(lit.)
• anion traces: S^2-: ≤0.005%; SCN^-: ≤0.02%; chloride (Cl^-): ≤0.15%; phosphate (PO₄^3-): ≤0.02%; sulfate (SO₄^2-): ≤0.05%
• cation traces: Fe: ≤0.005%; Pb: ≤0.005%
• SMILES string: [Na]C#N
• InChI: 1S/CN.Na/c1-2;
• InChI key: RTVFYQXEHKQMKO-UHFFFAOYSA-N

Description

General description

Sodium cyanide is colorless sodium salt and its crystals belong to the cubic crystal system. Its aqueous solutions are strongly basic due to the presence of cyanide ion. It can be synthesized by reacting sodium hydroxide with hydrogen cyanide. Sodium cyanide is a key precursor for the synthesis of various organic intermediates. It participates in the RuCl₃-mediated oxidative cyanation of tertiary amines.

Application

Sodium cyanide may be employed for the synthesis of the following compounds:

• α-amino acids
• Prussian blue (cyanide pigment)
• nitriles, via reaction with primary and secondary chlorides

Safety Information

• pictograms: GHS06,GHS08,GHS05,GHS09
• signalword: Danger
• hcodes: H290,H300 + H310 + H330,H372,H410
• pcodes: P262 - P264 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310
• Hazard Classifications: Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 1 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Met. Corr. 1 - STOT RE 1
• target_organs: Thyroid
• supp_hazards: EUH032
• Storage Class: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 3