Abstract
1. We investigated the adsorption and desorption isotherms for water vapor over the temperature range from 20 to −20° on silver iodide and chloride crystals with specific surfaces of the order of tenths and hundreds of a m2/g. 2. The adsorption isotherms were reversible over the whole pressure range investigated with the exception of isotherms at −20°, which were reversible only when supersaturation of water vapor relative to the stable solid phase was not produced in the adsorption system. 3. By analysis of adsorption isosteres it was established that there is a difference in the state of adsorbed water on the silver halides studied at temperatures below 0°.
Published Version
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