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Title: | Preparation and thermal decomposition of various forms of strontium oxalate | Authors: | KNAEPEN, Els MULLENS, Jules YPERMAN, Jan VAN POUCKE, Lucien |
Issue Date: | 1996 | Publisher: | ELSEVIER SCIENCE BV | Source: | THERMOCHIMICA ACTA, 284(1). p. 213-227 | Abstract: | Strontium oxalate exists in two different forms: the neutral strontium oxalate hydrate, SrC2O4 . H2O, and the acid salt of strontium oxalate, SrC2O4 . yH(2)C(2)O(4) . xH(2)O. Depending on the concentration of oxalic acid and ammonium oxalate as precipitating agents, both forms can be obtained. At a sufficiently low pH, the stoichiometric compound SrC(2)O(4)1/2H(2)C(2)O(4) . H2O is formed. The thermal decomposition of the different strontium oxalates is studied in different atmospheres using DSC, and TGA coupled with FTIR and MS. The TGA-EGA spectra indicate that the anhydrous acid oxalate decomposes with the release of H2O, CO, CO2 and formic acid. | Notes: | LIMBURGS UNIV CENTRUM,LAB INORGAN & PHYS CHEM,B-3590 DIEPENBEEK,BELGIUM. | Keywords: | strontium oxalate; thermal decomposition; DSC; TGA; FTIR; MS | Document URI: | http://hdl.handle.net/1942/3432 | DOI: | 10.1016/0040-6031(96)02863-8 | ISI #: | A1996VC19800018 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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