CPC Subgroup
C01D 1/40 by electrolysis
Full Title
Oxides or hydroxides of sodium, potassium or alkali metals in general > Hydroxides > Purification; Separation > by electrolysis
C01D 1/40 Oxides or hydroxides of sodium, potassium or alkali metals in general > Hydroxides > Purification; Separation > by electrolysis