Sodium cyanide
- CAS number
- 143-33-9
- Molecular weight
- 49.02
- Molecular formula / chemical symbol
- NaCN
Description
Apearances: White granular or frit. Fully dry, odorless, moisture absorption and decomposition in moist air to produce small amounts of hydrogen cyanide gas (bitter almond smell). Soluble in water, slightly soluble in ethanol. Its solution is strongly alkaline, easily hydrolyzed. A solution thereof in the presence of air can be quickly dissolved gold and silver. Melting point 563 ℃. Highly toxic, LD50 (rat, oral) 6.44mg/kg minimum lethal dose (person, orally) 2.85mg/kg. Corrosive.
USES
For
the extraction of gold, silver and other precious metals and quenching, and
used in plastics, pesticides, pharmaceuticals, dyes and other organic synthesis
industry.
Keywords:Surface treatment chemicals