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Sodium cyanide Structure

Sodium cyanide

Chemical Properties

Melting point 563.7 °C(lit.)
Boiling point 1497°C
Density  1.6
vapor density  1.7 (vs air)
vapor pressure  1 mm Hg ( 817 °C)
Flash point 1500°C
storage temp.  Poison room
solubility  H2O: 1 M at 20 °C, clear, colorless
pka 9.36[at 20 ℃]
form  Solid
color  White
Odor The dry salts are odorless, but reaction with atmospheric moisture produces HCN, whose bitter almond odor is detectable at 1 to 5 ppm; however, 20 to 60% of the population are reported to be unable to detect the odor of HCN.
PH 11.7 (100g/l, H2O, 20°C)
PH Range 11-12
Water Solubility  37 g/100mL (20 ºC)
Sensitive  Hygroscopic
Merck  14,8605
BRN  3587243
Exposure limits TLV-TWA (measured as CN) skin 5 mg CN/m3 (ACGIH and OSHA), 5 mg CN/m3/ 10-minute ceiling (NIOSH).
Dielectric constant 7.6(Ambient)
Stability hygroscopic
LogP -0.25 at 20℃
CAS DataBase Reference 143-33-9(CAS DataBase Reference)
NIST Chemistry Reference Sodium cyanide(143-33-9)
EPA Substance Registry System Sodium cyanide (143-33-9)

Safety Information

Hazard Codes  T+,N
Risk Statements  26/27/28-32-50/53-48/25
Safety Statements  7-28-29-45-60-61-28A
RIDADR  UN 1689 6.1/PG 1
WGK Germany  3
RTECS  VZ7525000
TSCA  Yes
HazardClass  6.1
PackingGroup  I
HS Code  28371110
Hazardous Substances Data 143-33-9(Hazardous Substances Data)
Toxicity LD50 orally in rats: 15 mg/kg (Smyth)

MSDS

Usage And Synthesis