Mechanisms electrolyte crystal growth from

Nielsen, A. E. (1986), "Mechanisms and Rate Laws in Electrolyte Crystal Growth from Aqueous Solution", in J. A. Davis and K. F. Hayes, Eds., Geochemical Processes at Mineral Surfaces, Amer. Chem. Soc. Symposium Series 323, 600-614. 

Mechanisms and Rate Laws in Electrolyte Crystal Growth from Aqueous Solution... 

We have reviewed today s knowledge of the mechanisms for growth of electrolyte crystals from aqueous solution Convection, diffusion, and adsorption ( ) mechanisms leading to linear rate laws, as well as the surface spiral mechanism (parabolic rate law) and surface nucleation (exponential rate law). All of these mechanisms may be of geochemical importance in different situations. 

In the preceding sections, we discussed the formation and transformation of ionic precipitates from bulk electrolyte solutions. We saw that the rates and mechanisms of the processes governing crystallization (nucleation, crystal growth, flocculation, and aging) depend on the experimental conditions such as supersaturation, temperature, and additives. It has been shown that surfactant micelles have a profound influence on crystallization, even to the extent of controlling the nature of the crystallizing phase (Fig. 8). In this section, we concern ourselves with crystallization of molecular crystals and/or inorganic clusters within confined spaces and/or at the oil/water interface such as occurs in emulsions and microemulsions. 

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