Hydrogen cyanide

September 4th, 2008 by

Hydrogen cyanide

IUPAC name
hydrogen cyanide
methanenitrile
hydridonitridocarbon
Other names
Hydrocyanic acid
prussic acid
formonitrile
formic anammonide
carbon hydride nitride
cyanane
cyclon
Identifiers
CAS number
RTECS number
MW6825000
SMILES
 
C#N
Properties
Molecular formula
HCN
Molar mass
27.03 g/mol
Appearance
Colorless gas or pale blue
highly volatile liquid
Density
0.687 g/cm³, liquid.
Melting point
-13.4°C (259.75 K, 7.88°F)
Boiling point
26°C (299.15 K, 78.8°F)
Solubility in water
Completely miscible.
Acidity (pKa)
9.2 – 9.3
Hazards
Main hazards
Highly toxic, highly flammable.
NFPA 704

4
4
2
 
R-phrases
R12, R26, R27, R28, R32.
S-phrases
(S1), (S2), S7, S9, S13, S16,
S28, S29, S45.
Flash point
−17.78 °C [...]

Posted in Uncategorized | No Comments »

Comments are closed.