Theory of the Stability of Lyophobic Colloids

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Format: Paperback
Pub. Date: 1999-07-07
Publisher(s): Dover Publications
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Summary

This chemistry classic offers an excellent, highly relevant account of the stability of lyophobic colloids and suspensions and develops a quantitative theory on the subject. Major topics consist of the theory of a single double layer (with considerations of the distribution of the electric charge and the free energy of a double layer system); the interaction of two parallel flat plates (including the potential energy via free energy and the force, and the Van Der Waals-London attractive forces); and the interaction of spherical colloidal particles. 1948 edition.

Table of Contents

Preface v
Summary vi
Part I Theory of a single double layer
Introduction
1(21)
Lyophobic and lyophilic colloids
1(3)
The electric double layer surrounding the particles
4(1)
The stability of lyophobic colloids
5(5)
Gelation and thixotropy
10(3)
Suspensions
13(5)
Emulsions
18(1)
Van Der Waals---London attraction forces
19(1)
The interaction of colloidal particles
20(2)
Distribution of the electric charge and potential in the electrochemical double layer
22(29)
Fundamentals
22(3)
Theory of the flat double layer
25(9)
The double layer at the interface of two liquid phases
34(3)
The double layer around a spherical particle
37(4)
Stern's theory for a flat double layer
41(5)
The value of the surface potential and the significance of potential determining ions. The zetapotential
46(5)
The free energy of a double layer system
51(15)
Introduction
51(1)
First method
52(4)
Second method
56(4)
On double layer interaction
60(3)
Appendix. On the equivalence of the two methods
63(3)
Part II On the interaction of two parallel flat plates
Charge and potential for the case of two flat double layers in interaction
66(11)
Interaction of two simple double layers
66(9)
Interaction of two double diffuse double layers
75(2)
The potential energy due to the interaction of two flat double layers
77(21)
Introduction
77(1)
Potential energy via free energy
77(13)
Potential energy via the force
90(8)
The Van Der Waals---London attractive forces
98(8)
The attraction between two atoms
98(2)
The attraction between two flat plates
100(4)
Relativity correction to the theory of London---Van Der Waals forces
104(2)
Total potential energy (repulsion + attraction) for two plates, and application to colloid stability
106(29)
Examples of potential energy curves
106(9)
Graphical survey of the stability conditions
115(8)
Correction of the theory in respect of thermal motion of the particles
123(1)
The minimum in the potential curves for large distances between the plates
124(2)
Theory of two flat double layers on the basis of Stern's picture of the double layer
126(7)
Stability of emulsions
133(2)
Part III On the interaction of spherical colloidal particles
Introduction
135(2)
The potential energy of interaction for large particles with a relatively thin double layer
137(6)
Introduction
137(1)
The repulsion for large χ a
137(3)
Application of the complete Gouy-Chapman equations
140(3)
The potential energy of interaction. when χ a is small (liner approximation)
143(17)
Principle of the method
143(1)
The distribution of the electric field and the relation between charge and potential of two interacting spherical particles
144(5)
Potential energy of interaction of two spherical double layers
149(7)
Convergency and accuracy of the method used
156(1)
Comparison of the equations for small and large values of χ a and evaluation of the repulsion for intermediate values of χ a
157(3)
The attractive force and the total potential energy of interaction
160(4)
Stability of colloids
164(22)
Kinetics of coagulation
164(5)
Application to the stability of colloids and related problems
169(11)
Introduction of the Stern correction
180(1)
Repeptization phenomena
181(1)
The minimum in the potential curves for great distances
182(4)
Appendix
Theoretical work on the stability of lyophobic colloids by previous authors
186(15)
Introduction
186(1)
Force methods
187(1)
Energy methods
188(7)
Langmuir's method
195(6)
Index to authors 201(2)
Index to subjects 203

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