Introduction to Colloid and Surface Chemistry |
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Page 127
... electrophoretic velocity is only observed at the locations in the tube where the electro - osmotic flow and return flow of the liquid cancel . For a tube of rectangular cross - section with a large width - to - depth ratio ( > ca. 20 ...
... electrophoretic velocity is only observed at the locations in the tube where the electro - osmotic flow and return flow of the liquid cancel . For a tube of rectangular cross - section with a large width - to - depth ratio ( > ca. 20 ...
Page 130
... electrophoretic mobility . Evaporation from the filter paper due to the heating effect of the applied current must be minimized otherwise the con- ductivity ( and potential gradient ) would alter during the experi- ment . After a ...
... electrophoretic mobility . Evaporation from the filter paper due to the heating effect of the applied current must be minimized otherwise the con- ductivity ( and potential gradient ) would alter during the experi- ment . After a ...
Page 136
... electrophoretic mobility when кa is low , since the electric field is hardly influenced by the particle in any case . When κa is large the electrophoretic mobility would be diminished . These effects are difficult to estimate accurately ...
... electrophoretic mobility when кa is low , since the electric field is hardly influenced by the particle in any case . When κa is large the electrophoretic mobility would be diminished . These effects are difficult to estimate accurately ...
Contents
THE COLLOIDAL STATE | 1 |
KINETIC PROPERTIES | 15 |
OPTICAL PROPERTIES | 38 |
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acid adsorbed adsorption adsorption isotherm approximately aqueous behaviour boundary Brownian capillary condensation cell charged surface chemisorption cm-¹ co-ions colloidal dispersions colloidal particles colloidal systems constant contact angle counter-ions cross-section curve cylinder decreases deflocculated deformation depends detergent dispersion medium distance droplets effect electrical double layer electrode electrolyte emulsifying equation equilibrium example Figure film flocculation flocculation concentration flow heat hydrocarbon chains hydrophilic increase interaction interface intrinsic viscosity ionic ions isotherms light scattered lyophobic material measurements membrane method micelles mixed film molecular weight molecules monolayer monomolecular motion O/W emulsions orientated osmotic pressure physical adsorption plate polymer polymerization pores porous potential energy protein relative repulsive sample sedimentation shear soaps sodium solid surface soluble solution solvation solvent stability Stern layer stress surface tension surface-active surfactant temperature theory thermal thixotropic valency vapour pressure velocity viscoelastic viscometer volume W/O emulsions Waals wetting zero zeta potential