Table 5.

Surface charge density determined by experimental zeta potential adjustment with KCl electrolyte.

Borosilicate in contact with KCl electrolyte
Concentration$\text{mM}$	* $\mathrm{\zeta }$$\times {\mathbf{10}}^{\mathbf{3}}$ $\mathbf{V}$	*Particle velocity$\times {\mathbf{10}}^{\mathbf{2}}$$\text{mm}/\mathbf{s}$	† $\mathrm{\zeta }$$\times {\mathbf{10}}^{\mathbf{3}}$ $\mathbf{V}$	† ${\mathit{\rho }}_{\mathbf{s}}$$\times {\mathbf{10}}^{\mathbf{3}}$ $\mathbf{C}/{\mathbf{m}}^{\mathbf{2}}$	error %
0.1	−89.53	3.038	−89.33	−4.39	0.22
0.2	−86.68	2.911	−86.48	−5.33	0.23
0.4	−83.32	2.818	−83.20	−6.57	0.14
0.6	−79.61	2.694	−79.51	−7.25	0.13
0.8	−78.97	2.689	−78.79	−8.08	0.23
1.0	−77.86	2.672	−77.69	−8.72	0.22
1.5	−71.64	2.446	−71.49	−9.18	0.21
2.0	−66.43	2.286	−66.30	−9.33	0.20
3.0	−64.01	2.186	−63.81	−10.72	0.31
4.0	−61.37	2.110	−61.27	−11.51	0.16

Note: *Experimental results. †Numerical results, present work. % is relative error between experimental and numerical $\mathrm{\zeta }$.