Caesium cyanide

Caesium cyanide (chemical formula: CsCN) is the caesium salt of hydrogen cyanide. It is a white solid, easily soluble in water, with a smell reminiscent of bitter almonds, and with crystals similar in appearance to sugar. Caesium cyanide has chemical properties similar to potassium cyanide and is very toxic.

Caesium cyanide
Names
IUPAC name
Caesium cyanide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/CN.Cs/c1-2;/q-1;+1
    Key: XTCPEYCUFMHXBI-UHFFFAOYSA-N
  • [C-]#N.[Cs+]
Properties
CCsN
Molar mass 158.923 g·mol−1
Appearance White solid
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Extremely toxic
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
4
0
0
Lethal dose or concentration (LD, LC):
5 mg/kg[1]
Related compounds
Other cations
 Lithium cyanide
Sodium cyanide
Potassium cyanide
Rubidium cyanide
Ammonium cyanide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Production

Hydrogen cyanide reacts with caesium hydroxide giving caesium cyanide and water:[2]

HCN + CsOH → CsCN + H2O.

References
  1. Bernard Martel. Chemical Risk Analysis: A Practical Handbook. Kogan, 2004, page 361. ISBN 1-903996-65-1.
  2. 化工辭典 氰化铯


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