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Abstract

The results of a number of investigations on the general phenomenon of the magnetic treatment of fluids are presented. The effects of applied magnetic fields on charged species in agueous solution are considered in light of these results and the work of other authors. It is proposed that the magnetic treatment effects are due to a direct magnetic field/charge interaction, which causes changes in the nature and degree of interionic associations within the treated solutions. This would influence the stability and number of pre-nucleation ionic clusters and increase the mobility of the ions and, hence, the activity of the solution.

A number of precipitation and scaling processes are shown to be influenced by magnetic treatment. This is characterized by changes in the rate of precipitation, the particle size, the degree of aggregation, the suspension settling rate and the morphology of the crystals and their propensity to form scale. These changes are shown to be consistent with the proposed theory.

Magnetic treatment is shown to increase the proportions of both calcium and magnesium ions precipitated from an equimolar solution of the two ions, by the addition of a phosphate solution. The magnitude and duration of the effect are determined under different conditions and evidence in support of the suggested mechanism is obtained.

The magnetic treatment of sodium chloride and acid solutions is shown to alter the corrosion rate of steel and the composition of the corrosion products. The observed changes are explained by effects on the charge transport near to the metal/solution interface. The magnitude and endurance of the effect are investigated under a variety of conditions

The kinetics of the reaction
21- + H2O2 + 2H+ ------- > I2 + 2HsO

(the Harcourt-Esson Reaction) are shown to be influenced by magnetic treatment. A study is made of the effects of varying the reaction parameters on the degree of the change in the reaction rate. The results of the investigation are shown to be consistent with the proposed theory and allow additional comments to be made about the mechanism.

Publication Type:	Thesis (Doctoral)
Subjects:	Q Science > QD Chemistry
Departments:	School of Science & Technology School of Science & Technology > School of Science & Technology Doctoral Theses Doctoral Theses

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