制备
亚硒酸钾可由H2SeO3和K2CO3反应得到:[2]
- H2SeO3 + K2CO3 → K2SeO3 + H2O + CO2↑
其中,H2SeO3可用二氧化硒溶于水进行反应。K2CO3可用KOH替代。反应后可从溶液中结晶出K2SeO3·H2O。一水合物可以在空气中风化,失去结晶水而得到无水物。[3]
参考文献
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