The influence of dispersion on the structural and sorption properties of the Transcarpathian clinoptilolite of the Sokyrnytske deposit was investigated by the method of complex thermal analysis. For a sample with a grain size of 0.14 mm, the effect of heat treatment on the ability to sorb water vapor was investigated. Thermal activation of clinoptilolite was carried out at temperatures of 200°C, 300°C, 400°C.The sorption capacity of natural and thermally activated clinoptilolite samples with relative to water vapor was investigated by thermal analysis. The obtained results were confirmed by infrared spectroscopy data. To study the effect of temperature on structural integrity, a sample of natural clinoptilolite was heated to a temperature of 550°C and analyzed by infrared spectroscopy. Activated at a temperature of 300°C, clinoptilolite was characterized by the maximum sorption capacity relative to water vapor and the highest content of sorption-active centers, the additional occurrence of which was not accompanied by the destruction of the clinoptilolite structure.To study the effect of temperature on structural integrity, a sample of natural clinoptilolite was analyzed by infrared spectroscopy. A sample of clinoptilolite with improved structural and sorption characteristics heat-activated at a temperature of 300°C is recommended for use in the processes of air drying, water purification and water treatment.