The electrolyte consists of {HEAD ~ an alkaline aqueous solution} of {TAIL ~ an alkali metal hydroxide or tetramethyl ammonium} hydroxide to which various buffers, including carbonates, borates, silicates, phosphates, and sulfates may be added 
of
The electrolyte consists of { HEAD ~ an alkaline aqueous solution } of { TAIL ~ an alkali metal hydroxide or tetramethyl ammonium } hydroxide to which various buffers , including carbonates , borates , silicates , phosphates , and sulfates may be added
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH