caa a22 4500 463191730 CHVBK 20180406164911.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10973-006-7526-1 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7526-1 Thermal behaviour of [Ca(H2O)4](NO3)2 [Elektronische Daten] [Anna Migdał-Mikuli, Joanna Hetmańczyk, Ł. Hetmańczyk] Melting process and thermal decomposition of [Ca(H2O)4](NO3)2 was studied by thermogravimetry analysis (TG), differential scanning calorimetry (DSC) and simultaneous differential thermal analysis (SDTA) at a constant heating rate. The gaseous products of the decomposition were on-line identified by a quadruple mass spectrometry (QMS). Tetraaquacalcium nitrate(V) melts at T m=320 K. The decomposition of the sample proceeds in three main stages. In the first stage dehydration of [Ca(H2O)4](NO3)2 to anhydrous Ca(NO3)2 undergoes in two steps, in which consecutively 1/4 and 3/4 of all H2O molecules are liberated. The thermal dehydration process starts just above ca. 302 K and continues up to ca. 475 K. In the second stage (475-775 K) anhydrous Ca(NO3)2 remains unchanged. The third stage is connected with the melting of anhydrous Ca(NO3)2 at T m=816 K and next with its decomposition in the liquid phase to nitrogen oxide, oxygen, nitrogen and solid CaO. Springer Science+Business Media LLC, 2007 anhydrous calcium nitrate(V) nationallicence DSC nationallicence DTA nationallicence melting points nationallicence tetraaquacalcium nitrate(V) nationallicence TG nationallicence thermal decomposition nationallicence Migdał-Mikuli Anna Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060, Cracow, Poland aut Hetmańczyk Joanna Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060, Cracow, Poland aut Hetmańczyk Ł. Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060, Cracow, Poland aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 89/2(2007-08-01), 499-503 1388-6150 89:2<499 2007 89 10973 https://doi.org/10.1007/s10973-006-7526-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7526-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Migdał-Mikuli Anna Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060, Cracow, Poland aut NATIONALLICENCE 700 1- Hetmańczyk Joanna Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060, Cracow, Poland aut NATIONALLICENCE 700 1- Hetmańczyk Ł. Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060, Cracow, Poland aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 89/2(2007-08-01), 499-503 1388-6150 89:2<499 2007 89 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer