SOLUBLE SALTS
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Soluble salts are a major cause of damage to wall paintings and other porous materials, but their complex behaviour remains insufficiently understood. Among the variables that effect the nature of the deterioration and the potential for passive environmental control are the kinetics of phase changes and the influence of salt mixtures. Although there are phase diagrams to predict the behaviour of mixed salt systems in situ, there is a paucity of information available on the kinetics of phase changes.