ZetaSpin
A Revolution in Zeta Potential Measurement
 

Sapphire Agings

Agings in KCl

27JUN06, 28JUN06 and 06JUL06

June 27th.  A polished sapphire sample was used in 160 μS/cm KCl solution.  The aging of KCl was observed at pH 5.5.

June 28th.  A polished sapphire sample was pre-treated in pH 11 solution and used in 138 μS/cm KCl solution.  The aging of sapphire in KCl was observed at pH 5.5

July 6th.  A polished sapphire sample was sonicated.  It was then pre-treated in pH 11 solution and used in 148 μS/cm KCl solution.  The aging of sapphire in KCl was observed at pH 5.5.  All plots proved to be reproducible over time.
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