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ChemicalBook CAS DataBase List Barium hydroxide
17194-00-2

Barium hydroxide synthesis

1synthesis methods
Barium hydroxide is made by dissolving barium oxide in hot water. The octahydrate, Ba(OH)2?8H2O, crystallizes upon cooling. It also is prepared by precipitation with caustic soda from an aqueous solution of barium sulfide:
BaS + 2NaOH → Ba(OH)2 + Na2S.
-

Yield:-

Reaction Conditions:

in solid matrixIrradiation (UV/VIS); heating of water, Ar (excess) and Ca at 465 - 550°C for 1 or 2 hin steel crucible in Ta furnace and cocondensation on mirrored Cu held at 15 K; photolysis of formed matrices with Xe or Hg lamp for 15 min to 2.5 h; reaction mechanisms described; not isolated; detn. by IR; mixture of HBaOH, Ba(OH)2 and Ba(OH) obtained;

References:

Kauffman;Hauge;Margrave [High temperature science,1984,vol. 18,# 2,p. 97 - 118]

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