Introduction to Colloid and Surface Chemistry |
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Page 38
Duncan J. Shaw. 3 OPTICAL PROPERTIES LIGHT SCATTERING When a beam of light is directed at a colloidal solution or ... scattered , whilst the remainder is transmitted undisturbed through the sample . The Tyndall Effect - Turbidity All ...
Duncan J. Shaw. 3 OPTICAL PROPERTIES LIGHT SCATTERING When a beam of light is directed at a colloidal solution or ... scattered , whilst the remainder is transmitted undisturbed through the sample . The Tyndall Effect - Turbidity All ...
Page 41
... scattered light waves , i.e. the intensity of the resulting scattered light will be almost zero . When the scattering sources are randomly arranged , which is virtually the case for gases , pure liquids and dilute solutions or ...
... scattered light waves , i.e. the intensity of the resulting scattered light will be almost zero . When the scattering sources are randomly arranged , which is virtually the case for gases , pure liquids and dilute solutions or ...
Page 43
... scattered at various angles is related to m , the ratio of the ( a ) Incident beam ( b ) 90 ° Constructive interference 90 ° -180 ° Destructive interference Figure 3.3 . ( a ) Scattering ... scattering ( usually defined 43 LIGHT SCATTERING.
... scattered at various angles is related to m , the ratio of the ( a ) Incident beam ( b ) 90 ° Constructive interference 90 ° -180 ° Destructive interference Figure 3.3 . ( a ) Scattering ... scattering ( usually defined 43 LIGHT SCATTERING.
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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