Sodium cyanide

From Academic Kids

Sodium cyanide
Molecular formula NaCN
Molar mass 49.01 g/mol
Appearance white solid
CAS number [143-33-9]
EINECS number 205-599-4
Properties
Density and phase 1.6 g/cm3, solid
Solubility in water 48 g/100 ml (10°C)
Solubility in other solvents soluble in alcohols
Melting point 564°C (837 K)
Boiling point 1496°C (1769 K)
Structure
Coordination geometry  ?
Crystal structure  ?
Safety data
EU classification Very toxic (T+)
Dangerous for
the environment (N)
R-phrases R26/27/28, R32
R50/53
S-phrases S1/2, S7, S28, S29
S45, S60, S61
PEL (US, OSHA) 5 mg/m3
(as CN)
IDLH (US, NIOSH) 25 mg/m3
(as CN)
RTECS number TS8750000
Supplementary data page
Structure & properties n, εr, etc.
Thermodynamic data Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Other cations Potassium cyanide
Related compounds Hydrogen cyanide
Except where noted otherwise, data are given for
materials in their standard state (at 25°C, 100 kPa)
Infobox disclaimer and references

Sodium cyanide is a highly toxic chemical compound, also known as sodium salt of hydrocyanic acid and cyanogran. Immediate medical attention is required in the event of cyanide poisoning, as it is quickly fatal.

Sodium cyanide is used to extract gold and other precious metals from ore, and so metal mining operations consume most of the sodium cyanide production; see cyanide process for the use in gold mining. Accidents with cyanide solutions are a severe danger to aquatic ecosystems.

See also

External links

ja:シアン化ナトリウム

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