I am using some SiO2 chips with some conductive features on it as electrodes. Does SiO2 withstand high pH - say pH 12 or 13 (0.01M, 0.1M NaOH)?
SiO2 has a finite but small etch rate in alkalis. SiO2 etch rates in KOH are known because SiO2 is used to mask KOH etching of Si. Maybe NaOH is similar. KOH etch rates for Si and SiO2 are here https://cleanroom.byu.edu/KOH
Thanks Manuel! That's a great resource in the link. This gives me the info I need!
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