Dielectric Properties of Hydrogen Halides. II. Hydrogen Chloride

Dielectric constant and loss measurements have been made for liquid and solid hydrogen chloride in the temperature range 63—190°K and frequency range 20 cps to 106 cps. The dielectric constants of the liquid and disordered solid phase stable above 99°K are described quite accurately by Onsager's equation. Below 99°K a slight dispersion with activation energy of 2.6 kcal/mole is found with dielectric constants in the range 3.7—4.3. Special precautions against sample inhomogeneity were necessary; these and various residual effects are discussed.