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 is similarly very toxic.

Rubidium cyanide

Names
IUPAC name Rubidium cyanide
Identifiers
CAS Number	19073-56-4 N
3D model (JSmol)	Interactive image
ChemSpider	31044239
PubChem CID	23685983
CompTox Dashboard (EPA)	DTXSID50635609
InChI InChI=1S/CN.Rb/c1-2;/q-1;+1 Key: LVVHSFSKNVFYAG-UHFFFAOYSA-N
SMILES [C-]#N.[Rb+]
Properties
Chemical formula	CNRb
Molar mass	111.486 g·mol−1
Appearance	White solid
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Extremely toxic
NFPA 704 (fire diamond)	4 0 0
Lethal dose or concentration (LD, LC):
LD50 (median dose)	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.