Bariumcyanid Chemische Eigenschaften,Einsatz,Produktion Methoden
Chemische Eigenschaften
Barium cyanide is a white crystalline powder.
Often used in solution.
Physikalische Eigenschaften
White crystalline powder; slowly decomposes in air; highly soluble in water, soluble in alcohol.
Verwenden
In electroplating processes; in metallurgy.
synthetische
Barium cyanide is prepared by reacting barium hydroxide with hydrocyanic acid:
Ba(OH)
2 + 2HCN → Ba(CN)
2 +2H
2O
The product is crystallized from the solution.
Allgemeine Beschreibung
A white crystalline solid. Toxic by skin absorption through open wounds, by ingestion, and by inhalation of hydrogen cyanide from decomposition. Toxic oxides of nitrogen are produced in fires involving BARIUM CYANIDE.
Air & Water Reaktionen
Soluble in water. Gradually decomposed by water and rapidly decomposed by acids to give off hydrogen cyanide, a flammable poison gas.
Reaktivität anzeigen
BARIUM CYANIDE is an inorganic cyanide. Members of this class that contain heavy metals tend to explosive instability, most of them are capable of violent oxidation under certain conditions; fusion of metal cyanides with metal chlorates, perchlorates, nitrates, or nitrites can cause violent explosion [Bretherick 1979 p. 101].
Hazard
Questionable carcinogen.
Health Hazard
INHALATION OR INGESTION: Exposure to cyanides can cause headache, vertigo, nausea, and vomiting may occur at low concentrations. High concentration causes difficult breathing, palpitation, paralysis, unconsciousness, respiratory arrest, cyanosis, and death. EYES: Irritation. SKIN: Rash, desquamation and itching.
Brandgefahr
Special Hazards of Combustion Products: Toxic cyanides and barium oxides.
Sicherheitsprofil
A deadly poison. See
also CYANIDE and BARIUM
COMPOUNDS (soluble). When heated to
decomposition it emits toxic fumes of CN-.
mögliche Exposition
Barium cyanide is used in electroplating
and in metallurgy.
Versand/Shipping
UN1565 Barium cyanide, Hazard Class: 6.1;
Labels: 6.1—Poisonous materials.
Inkompatibilitäten
Solution is basic. Incompatible with oxidizers
(chlorates, nitrates, peroxides, permanganates, perchlorates,
chlorine, bromine, fluorine, etc.); contact may
cause fires or explosions. Keep away from alkaline materials,
strong acids, & acid salts (release toxic hydrogen cyanide
gas), strong bases.
Waste disposal
Precipitate barium with sulfate.
Then add with stirring to alkaline calcium hypochlorite
solution. Let stand 24 hours, then flush to sewer.
Bariumcyanid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
