METHOD OF DETERMINING MOISTURE CAPACITY OF SOLID HYGROSCOPIC OBJECTS Russian patent published in 2014 - IPC G01N25/56 

FIELD: chemistry.

SUBSTANCE: method of determining moisture capacity of solid hygroscopic objects includes placement of analysed objects into a hermetic container and drying until the objects are completely dehydrated. The method also includes measurement of temperature and humidity of an internal medium in the container and final determination of mathematical and graphic dependences of the object water content on equilibrium moisture of the internal medium. In the process of storing objects in the hermetic container drying to complete dehydration of objects is performed by successive introduction of samples of adsorbents and their weighing before placement into the hermetic container and after removal from it until a stable weight of the next sample of the adsorbent is set. After that, into an evaporator, mounted inside the hermetic container, portions of distilled water are successively introduced, and the hermetic container is kept under stationary temperature conditions until equilibrium humidity is set in the hermetic container with mounted in it temperature and humidity sensor. After that, the measured parameters of humidity and weight of portions of introduced distilled water are used to build a graph of dependence of the total moisture content in the analysed objects on equilibrium humidity of the internal medium of the hermetic container with mathematical determination of a value of the total moisture capacity of the analysed objects by known dependences and its dependence on equilibrium humidity in the hermetic container.

EFFECT: elaboration of the method of determining moisture capacity of solid hygroscopic objects, which makes it possible to determine the total moisture capacity of a group of hygroscopic objects.

4 dwg, 1 ex