Introduction to Colloid and Surface Chemistry |
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Page 59
... If the interfacial tension between two liquids is reduced to a sufficiently low value on addition of a surfactant , emulsification will readily take place because only a relatively small increase 59 ADSORPTION AND ORIENTATION AT INTERFACES.
... If the interfacial tension between two liquids is reduced to a sufficiently low value on addition of a surfactant , emulsification will readily take place because only a relatively small increase 59 ADSORPTION AND ORIENTATION AT INTERFACES.
Page 176
... emulsifying agent . The type of emulsion which ( a ) Water ( b ) Oil Oil DODDDOO Water- Figure 10.2 . Stabilization of emulsions by finely divided solids : ( a ) preferential wetting by water leading to an O / W emulsion ; ( b ) ...
... emulsifying agent . The type of emulsion which ( a ) Water ( b ) Oil Oil DODDDOO Water- Figure 10.2 . Stabilization of emulsions by finely divided solids : ( a ) preferential wetting by water leading to an O / W emulsion ; ( b ) ...
Page 177
... Emulsifying agent ( fatty - acid soap ) 2-5 g Catalyst ( potassium persulphate ) 0.1–0.5 g Water 180 g The basic ... emulsified monomer droplets but in the soap micelles . The monomer droplets serve as reservoirs to supply material to ...
... Emulsifying agent ( fatty - acid soap ) 2-5 g Catalyst ( potassium persulphate ) 0.1–0.5 g Water 180 g The basic ... emulsified monomer droplets but in the soap micelles . The monomer droplets serve as reservoirs to supply material to ...
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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