This article is cited in 1 paper

Phase transitions of water in zeolite pores

G. S. Bordonskii, A. O. Orlov

Institute of Natural Resources, Ecology and Cryology of the Siberian Branch of the RAS

Abstract: Phase transition temperatures of water are experimentally determined for the case in which ice melts in the pores of zeolite (natural mineral) with a pore size of 0.2–2 nm. Three temperatures with a sharp change in the heat capacity and extremes of low-frequency electrical fluctuations are found when moistened material is heated from -150 to 100$^{\circ}$C, the values of which are –20, 43, and 86$^{\circ}$C. These values are associated with the melting of polygonal structures containing from five to seven water molecules.

Received: 26.02.2018
Revised: 06.12.2018
Accepted: 11.12.2018

DOI: 10.21883/PJTF.2019.05.47391.17265

 English version: Technical Physics Letters, 2019, 45:3, 205–207

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