  The thermal conductivity of tetrahydrofuran hydrate has been measured in the
temperature region 2 &#8211; 220 K by the steady-state potentiometric method.
The temperature dependence of the thermal conductivity exhibits behavior
typical of amorphous substances. It is shown that above 100 K the mean free
path of the phonons is considerably smaller than the lattice parameter and is
no longer dependent on temperature.
