Figure 3.

Alkaline degradation of various cations in ${\mathrm{D}}_2\mathrm{O},V_{{\mathrm{D}}_2\mathrm{O}}\mathrm{/}{V}_{{\mathrm{CD}}_3\mathrm{OD}}=1\mathrm{:}1,\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}{V}_{{\mathrm{D}}_2\mathrm{O}}\mathrm{/}{V}_{{\mathrm{CD}}_3{\mathrm{CD}}_2\mathrm{OD}}=1\mathrm{:}1\hspace{0.17em}\mathrm{and}\hspace{0.17em}{V}_{{\mathrm{D}}_2\mathrm{O}}\mathrm{/}{V}_{\mathrm{DMSO}}=1\mathrm{:}1\hspace{0.17em}\mathrm{alkaline}\hspace{0.17em}\mathrm{media}\hspace{0.17em}(2\hspace{0.17em}\mathrm{m}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\mathrm{KOH}\hspace{0.17em}\mathrm{80}\hspace{0.17em}°\mathrm{C},\hspace{0.17em}\mathrm{96}\hspace{0.17em}\mathrm{h})$.