Abstract
The dehydration process of calcium bromide hexahydrate has been investigated using the quasi isothermal—quasi isobaric thermogravimetry method. It was found that in a self-generated atmosphere (labyrinth crucible), the path of the process is indicated by the intermediate formation of tetra-, di- and monohydrates. In the course of the reaction, crystalline, saturated solution and water vapour phases form a state of quasi equilibrium. If the sample contacts a water vapour atmosphere lower than 1 atm pressure (open crucible), it loses first 3, then 2 and finally 1 moles of water. The actual existence of the detected CaBr 2 · 3H 2O intermediate is questionable
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