NaOH\mathrm{NaOH}NaOH
K4[Fe(CN)6]\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]K4[Fe(CN)6]
NaOH,K2HgI4\mathrm{NaOH}, \mathrm{K}_{2} \mathrm{HgI}_{4}NaOH,K2HgI4
(NH4)2,C2O4\left(\mathrm{NH}_{4}\right)_{2}, \mathrm{C}_{2} \mathrm{O}_{4}(NH4)2,C2O4