The name is absent

Chapter 4

[SiO]⅝(H*)exp(-⅛

[SiOH] =-------------⅛-

ʌ^sɪ-

a, (H÷ )exp(- ≤)+—J— [¾ (H * )exp(⅛]²
^A1+-^A1-

[SiO- ] =----------------ʒ-ɪ;--------------_r-           [4.26]

¹ +      W-¾ + τr∏^[^ (H⁺)exp(-⅛]²

ʌsi-             ʌ'ɪ ʌsi+^-

Here K(K_a∣i, K_a∣2. Ksm and Ksi2) /V (Wai. Afa and Λ∕_b) are equilibrium constants
and surface sites densities, respectively, which can be obtained by fitting with the
experiment data. From Eqs. [4.19] - [4.27], zeta potential ζ_ca∣ can be calculated

from the initial evaluates of K and /V. Parameters estimation was done using

Matlab optimization toolbox. The object function to be determined is ∣∣ <_ca∣ - ζ_e×p Il-
Iteration terminates when ∣∣ ζ_ca∣ - ζ_e×p ∣∣< tolerance.

Figure 4.18 shows the experiment data and fitted curve of kaolinite zeta

potentials in 0.05 M NaCI brine at different pH. Zeta potential of kaolinite becomes

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