Abstract
Proton transport in Al2(SO4)3·16H2O has been established using different techniques namely coulometry, transient ionic current, i.r., DTA/TGA and electrical conductivity. The possible charge carriers are H+ and OH− generated as a result of possible electrolysis of hydrate water molecules. The mobilities of the two charge carriers are approximately 4×10−5 and 2.4×10−5cm2V−1s−1. The electrical conductivity shows strong dependence upon humidity and also shows a against 1/T behaviour closely related with its thermal dehydration reaction.
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