151 pp. Text in English. Diffusion is a fundamental irreversible transport process and often the rate determining step in many industrial and natural processes. The backbone of diffusion is the precise measurement of diffusion coefficients. Still, experimental diffusion coefficients are often lacking. There was a need for tracer diffusion measurement data in ternary system to test the theoretical Onsager limiting law and also need for diffusion coefficients in porous media to be used in a simulation program to predict moisture and salt concentration profiles under different environmental conditions. The diffusion coefficients of common salts were measured in porous fired bricks as a function of concentration and temperature with the numerical computer simulation and data analysis. A mathematical model was presented. The Diaphragm Cell and the Closed Capillary methods developed in this thesis are both excellent techniques for the diffusion coefficient measurements in porous materials, The Onsager limiting law was verified for the first time for a 2:1 electrolyte.

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T�tulo

Tracer and Interdiffusion Measurements of Some Common Salts in Aqueous Solutions and in Porous Media

Editor

Aalto University, School of Chemical Technology, 97

Fecha de publicaci�n

2014

Encuadernaci�n

Soft Cover

Edici�n

1st Edition.

Estado

Near Fine

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Science

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