Phase transitions of [M(H2O)6](MnO4)2 polycrystalline compounds,where M=Mg2+,Ni2+,Zn2+,Cd2+, studied by DSC |
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| Authors: | Edward Mikuli Bart?omiej Grad Stanis?aw Wróbel |
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| Institution: | 1. Faculty of Chemistry of the Jagiellonian University, Department of Chemical Physics, Ingardena 3, 30-060 Kraków, Poland;2. Agricultural University of Cracow, Faculty of Forestry, Department of Forest Pathology, Al. 29 listopada 46, 31-425 Kraków, Poland;3. Jagiellonian University, Faculty of Physics, Astronomy and Applied Computer Science, M. Smoluchowski Institute of Physics, Department of Advanced Materials Engineering, Reymonta 4, 30-059 Kraków, Poland;1. Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;2. Department of Chemistry, Moscow State University, 119991 Moscow, Russia;1. Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden;2. Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany;1. Department of Chemistry, Sakarya University, 54187 Serdivan, Sakarya, Turkiye;2. Vocational School of Arifiye, Sakarya University, 54580 Arifiye, Sakarya, Turkiye;3. Department of Metallurgical and Materials Engineering, Sakarya University, 54187 Serdivan, Sakarya, Turkiye;1. Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark;2. Center for Electron Nanoscopy, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark |
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| Abstract: | Phase transitions of M(H2O)6](MnO4)2, where M=Mg, Ni, Zn and Cd, have been studied at 100–400 K by differential scanning calorimetry (DSC). One solid–solid phase transition for the compounds with M=Mg and Ni and two solid–solid phase transitions for these with M=Zn and Cd have been discovered. Additionally, three phase transitions, connected with three-stage melting process of these compounds, were also found. Thermodynamic parameters of the all detected phase transitions were calculated. |
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