Introduction to Colloid and Surface Chemistry |
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Page 82
Duncan J. Shaw. 40 30 20 20 77 , dyne / cm 10 Water Dilute HCL 0 20 25 30 Figure 4.25 . A , Å2 / molecule -A curves for stearic acid spread on water and dilute acid substrates at 20 ° C 20 20 15 77 , dyne / cm 0 52 100 0 50 A , Å2 ...
Duncan J. Shaw. 40 30 20 20 77 , dyne / cm 10 Water Dilute HCL 0 20 25 30 Figure 4.25 . A , Å2 / molecule -A curves for stearic acid spread on water and dilute acid substrates at 20 ° C 20 20 15 77 , dyne / cm 0 52 100 0 50 A , Å2 ...
Page 88
... dyne cm - 1 a time - dependent collapse of the film into bundles of insoluble fibres takes place . The area occupied by the compressed protein film is often characterized by the limiting area obtained by extrapolating the approximately ...
... dyne cm - 1 a time - dependent collapse of the film into bundles of insoluble fibres takes place . The area occupied by the compressed protein film is often characterized by the limiting area obtained by extrapolating the approximately ...
Page 180
... dyne cm - 1 . 6. The following surface tensions were measured for aqueous solutions of n.pentanol at 20 ° C. c ( molar ) 0 0.01 0.02 0.03 0.04 0.05 0.06 0.08 0.10 y ( dyne cm - 1 ) 72.6 64.6 60.0 56-8 54-3 51-9 49-8 46-0 43.0 From the ...
... dyne cm - 1 . 6. The following surface tensions were measured for aqueous solutions of n.pentanol at 20 ° C. c ( molar ) 0 0.01 0.02 0.03 0.04 0.05 0.06 0.08 0.10 y ( dyne cm - 1 ) 72.6 64.6 60.0 56-8 54-3 51-9 49-8 46-0 43.0 From the ...
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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