Comment: |
manuscript published as [GCSVB01] with other parameters and other pK/logK, data for I = 0; pK was assumed to be 6.94 (IS=0.01M) in accordance with [O95b] and [CSSFZ93 ], given protolysis reaction: -Si(OH)2 = -SiO2H- + H+; pK was adjusted using experimentally obtained charges of the silica surface from [A70], [B576] and [C94]; [=Si(OH)2]total=0.51mM (2.31sites/nm^2 [DK90]), [H2CO3]free=16.4µM, [H4SiO4]total=0.9mM |