Mössbauer Studies of Molecular Viscosity of Frozen Water Layers in Montmorillonite Pores Using 57Fe Probe Atoms

Within the framework of the Maxwell and Kelvin–Voigt models using a set of exchange forms of the 57Fe probe, the viscoelastic parameters of water layers in a natural mineral were established. A methodical approach confirming the concept of shear molecular viscosity was proposed and tested. It was shown that the problem of its determination from Mössbauer studies can be solved using the Einstein, Debye, and Frenkel models.