Branco, C. H.D.Silva, A. L. [UNESP]Luiz, J. M. [UNESP]Mercuri, L. P.Matos, J. R.2022-04-282022-04-282009-01-01Ecletica Quimica, v. 34, n. 1, p. 51-56, 2009.1678-46180100-4670http://hdl.handle.net/11449/222595Ten samples of kidney stone had been studied through elemental analysis of CHN (EA), Infrared Absorption Spectroscopy and X-Ray Powder Diffraction (XRD). The thermal behavior of the samples is studied by Thermogravimetry/Derivative Thermogravimetry (TG/DTG) and Differential Scanning Calorimetry (DSC). The results of AE, IV absorption Spectroscopy and XRD showed the presence of struvite (NH4Mg [PO4].6H2O), apatite, monohydrated calcium oxalate and dihydrated calcium oxalate. The TG and DSC curves allowed to classify the samples in two different groups: Group I show typical thermal behavior of struvite and Group II present a profile thermal analytical characteristic of a mixture of calcium oxalate.51-56porKidney stoneStruviteThermal AnalysisUrinary CalculiArtigo10.26850/1678-4618EQJ.V34.1.2009.P51-562-s2.0-85116728347