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)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P262 Do not get in eyes, on skin, or on clothing. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P314 Get medical advice/attention if you feel unwell.