Alexander Salyulev

Maximum on the Electrical Conductivity Polytherm of Molten TeCl4

Abstract The electrical conductivity of molten TeCl4 was measured up to 761K, i.e. 106 degrees above the normal boiling point of the salt. For the first time it was found that TeCl4 electrical conductivity polytherm has a maximum. It was recorded at 705K (κmax=0.245 Sm/cm), whereupon the conductivity decreases as the temperature rises. The activation energy of electrical conductivity was calculated.

Electrical Conductivity of Molten CdCl2 at Temperatures as High as 1474 K

Abstract The electrical conductivity of molten CdCl2 was measured across a wide temperature range (ΔT=628 K), from 846 K to as high as 1474 K, i.e. 241° above the normal boiling point of the salt. In previous studies, a maximum temperature of 1201 K was reached, this being 273° lower than in the present work. The activation energy of electrical conductivity was calculated.

Electrical Conductivity of Molten ZnCl2 at Temperature as High as 1421 K

Abstract The electrical conductivity of molten ZnCl2 was measured in a wide temperature range (ΔT=863 K) to a temperature as high as 1421 K that is 417 degrees above the boiling point of the salt. At the temperature maximum of the own vapor pressure of the salt reached several megapascals.

On Polymorphism of Dysprosium Trichloride

Abstract For the first time, the structure of crystalline DyCl3 over a wide temperature range from room temperature to melting point was studied by Raman spectroscopy. The phonon modes (cm–1) of dysprosium trichloride (monoclinic crystal lattice of AlCl3 type, Z=4, CN = 6) at room temperature are 257 (A1g), 201 (Eg), 112 (Eg), 88 (A1g), and 63 (Eg). The monoclinic structure of the crystalline DyCl3 C2h3 symmetry was found to remain constant over the studied temperature range. No polymorphic transformation in the solid state was detected. Gravimetry, calorimetry, and mass spectrometry have been used in addition to support the conclusions made on the basis of Raman spectroscopic data.