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Comparison of Various Methods for Water Activity Determination
Author(s) -
Dette S. S.,
Ulrich J.
Publication year - 2006
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200600104
Subject(s) - relative humidity , fusion , water activity , humidity , chemistry , process engineering , biological system , thermodynamics , water content , engineering , geotechnical engineering , physics , linguistics , philosophy , biology
The water activities at the transition point of ten inorganic hydrates were determined by different techniques. The techniques used were compared and evaluated aiming to identify which one is the most efficient. It could be shown that measuring the relative humidity is an easy, accurate, direct, and low‐priced method and as such more efficient than other methods tested (measuring the density, hardness, and heat of fusion).