Introduction to Colloid and Surface Chemistry |
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Page 16
... coefficient for the particle in the given medium . For spherical particles the frictional coefficient is given by Stokes ' law f = 6πηα where n is the viscosity of the medium and a the radius of the particle . Therefore , if p2 is the ...
... coefficient for the particle in the given medium . For spherical particles the frictional coefficient is given by Stokes ' law f = 6πηα where n is the viscosity of the medium and a the radius of the particle . Therefore , if p2 is the ...
Page 17
... coefficient is also increased by particle solvation ( hydration in aqueous systems ) . A particle containing a given volume of dry material will have its smallest possible frictional coefficient , fo , in a particular liquid when it is ...
... coefficient is also increased by particle solvation ( hydration in aqueous systems ) . A particle containing a given volume of dry material will have its smallest possible frictional coefficient , fo , in a particular liquid when it is ...
Page 20
... coefficient and D is the diffusion coefficient of a system containing the equivalent unsolvated spheres ) is equal to the reciprocal of the frictional ratio f / fo . Charge effects are discussed on page 27 . Measurement of Diffusion ...
... coefficient and D is the diffusion coefficient of a system containing the equivalent unsolvated spheres ) is equal to the reciprocal of the frictional ratio f / fo . Charge effects are discussed on page 27 . Measurement of Diffusion ...
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acid adsorbed adsorption adsorption isotherm approximately aqueous behaviour Brownian calculated cell charged surface chemisorption cm-¹ cm³ coefficient colloidal dispersions colloidal particles colloidal systems constant contact angle counter-ions curve cylinder decreases deflocculated deformation depends detergent diffusion dispersion medium distance droplets effect electrical double layer electrode electrolyte emulsifying equation equilibrium example Figure film flocculation flocculation concentration flow hydrocarbon chains hydrophilic increase interaction interface intrinsic viscosity ionic ions isotherms light scattered material measured 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 potential gradient protein ratio relative repulsive sample sedimentation shear soaps sodium solid surface soluble solution solvation solvent spherical particles 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