バリウムジシアニド 化学特性,用途語,生産方法
化学的特性
Barium cyanide is a white crystalline powder.
Often used in solution.
物理的性質
White crystalline powder; slowly decomposes in air; highly soluble in water, soluble in alcohol.
使用
In electroplating processes; in metallurgy.
製造方法
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.
一般的な説明
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.
空気と水の反応
Soluble in water. Gradually decomposed by water and rapidly decomposed by acids to give off hydrogen cyanide, a flammable poison gas.
反応プロフィール
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].
危険性
Questionable carcinogen.
健康ハザード
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.
火災危険
Special Hazards of Combustion Products: Toxic cyanides and barium oxides.
安全性プロファイル
A deadly poison. See
also CYANIDE and BARIUM
COMPOUNDS (soluble). When heated to
decomposition it emits toxic fumes of CN-.
職業ばく露
Barium cyanide is used in electroplating
and in metallurgy.
輸送方法
UN1565 Barium cyanide, Hazard Class: 6.1;
Labels: 6.1—Poisonous materials.
不和合性
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.
廃棄物の処理
Precipitate barium with sulfate.
Then add with stirring to alkaline calcium hypochlorite
solution. Let stand 24 hours, then flush to sewer.
バリウムジシアニド 上流と下流の製品情報
原材料
準備製品