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Barium cyanide

Barium cyanide is an inorganic compound, a salt of barium metal and hydrocyanic acid with the formula Ba (CN) 2 , colorless crystals, dissolved in water. Toxic

Barium cyanide
Barium cyanide structure.svg
Are common
Systematic
name
Barium cyanide
Traditional namesCyanide barium
Chem. formulaBa (CN) 2
Physical properties
conditioncolorless crystals
Molar mass189.38 g / mol
Thermal properties
T. melt.600 ° C
Chemical properties
Solubility in water80 14 g / 100 ml
Solubility in 70% Ethanol16 14 g / 100 ml
Classification
Reg. CAS number542-62-1
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider
Security
ToxicityToxic

Content

Getting

  • Calcination of a mixture of barium and carbon in a stream of nitrogen :
Ba+2C+N2→TBa(CN)2{\ displaystyle {\ mathsf {Ba + 2C + N_ {2} \ {\ xrightarrow {T}} \ Ba (CN) _ {2}}}}  

Physical Properties

Barium cyanide forms colorless crystals.

It is soluble in water and ethanol .

Chemical Properties

  • In aqueous solutions, it undergoes hydrolysis to a basic salt (the solution has an alkaline reaction):
Ba(CN)2+H2O→Ba(OH)CN+HCN{\ displaystyle {\ mathsf {Ba (CN) _ {2} + H_ {2} O \ {\ xrightarrow {}} \ Ba (OH) CN + HCN}}}  
  • In humid air, it slowly reacts with carbon dioxide , releasing toxic hydrocyanic acid:
Ba(CN)2+CO2+H2O→BaCO3+2HCN↑{\ displaystyle {\ mathsf {Ba (CN) _ {2} + CO_ {2} + H_ {2} O \ {\ xrightarrow {}} \ BaCO_ {3} + 2HCN \ uparrow}}}  

Toxicity

Barium cyanide is highly toxic. Toxic, like all soluble barium salts and no less toxic salts of hydrocyanic acid.

Literature

  • Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
  • Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.


Source - https://ru.wikipedia.org/w/index.php?title= Barium cyanide&oldid = 91800019


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Clever Geek | 2019