Rubidium cyanide

Rubidium cyanide (chemical formula: RbCN) is the rubidium salt of hydrogen cyanide. It is a white solid, easily soluble in water, with a smell reminiscent of bitter almonds, and somewhat similar in appearance to sugar. Rubidium cyanide has chemical properties similar to potassium cyanide and thus it is a very toxic substance.

Rubidium cyanide
Names
IUPAC name
Rubidium cyanide
Identifiers
3D model (JSmol)
Properties
CNRb
Molar mass 111.486 g·mol−1
Appearance White solid
Hazards
Main hazards Extremely toxic
NFPA 704 (fire diamond)
Flammability code 0: Will not burn. E.g. waterHealth code 4: Very short exposure could cause death or major residual injury. E.g. VX gasReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
0
4
0
Lethal dose or concentration (LD, LC):
5–10 mg/kg[1]
Related compounds
Other cations
 Lithium cyanide
Sodium cyanide
Potassium cyanide
Caesium cyanide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Production

Rubidium cyanide can be synthesized by the reaction of hydrogen cyanide and rubidium hydroxide in alcohol or ether:[2]

HCN + RbOH → RbCN + H2O.

References
  1. Bernard Martel. Chemical Risk Analysis: A Practical Handbook. Kogan, 2004, page 361. ISBN 1-903996-65-1.
  2. Rubidium cyanide (in Chinese). ChemYQ.
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