in water dissolving 1 g Zn(OH)2 (pptd. with KOH, neutral against phenolphthalein) in 22 ml H2O and adding 4 g Na2SO4 * 10 H2O; alkaline reaction with phenolphthalein observed;;
参考文献
Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 139, p. 857 - 857
in neat (no solvent) at temperatures higer than 100°C, excess NaO2;;
参考文献
Zhurnal Neorganicheskoi Khimii, , vol. 5, p. 256 - 259
Zhurnal Neorganicheskoi Khimii, , vol. 5, p. 535 - 539
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反应条件
in neat (no solvent) byproducts: Al(OH)3; heating a mixture of SeO2 with a small excess of Na2O2 in a porcelain crucible; formation of a light brown melt; dissolving the melt in water; removal of an excess of Na2O2 on passing in CO2; pptn. of NaOH and Al(OH)3 formed by react. with the crucible;; filtration; crystallization on concentrating on a water bath; repeated recrystallization from hot water; drying in a desiccator; formation of an anhydrous salt by crystallization above 30 °C;;
