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The thermal behaviour of a series of oxovanadium(IV) complexes of halogenated derivatives of 8-hydroxyquinoline was investigated by means of TG and DTA measurements in oxygen atmosphere. V 2 O 5 was the final pyrolysis residue in all cases.
A number of 15 (Fe(Diox#x00B7;H) 2 L 2 ) type chelates and (Fe(Diox) 3 (BOR) 2 ) clathrochelates (Diox#x00B7;H 2 — dimethylglyoxime, glyoxime, propoxime, nyoxime, furyl-dioxime; L -pyridine, alkyl-pyridine derivatives, diethyl-phenyl-phosphine, diethyl- p -tolyl-phosphine) were obtained and...
Thermal stability of vegetative cells of Listeria monocytogenes, Escherichia coli and Lactobacillus plantarum was studied by counting viable fractions and determining DSC curves of their suspensions. DSC curves in the 5–99°C range showed a series of endothermic transitions between 50 and...
Molybdenite is the main ore mineral for the molybdenum industry and the production of molybdenum. The industrial processing of molybdenite is based on its oxidized roasting to technical grade molybdenum oxide, followed by its purification by distillation or its ammonia leaching. The present work...
The complexation of urea and some guanidinium derivatives by the ligands 15-crown-5, 18-crown-6, benzo-18-crown-6 and diaza-18-crown-6 in methanol has been studied by means of calorimetric titrations. The complex formation is mainly favored by entropic contributions. The number of solvent...
Differential scanning calorimetry (DSC) combined with an entrained droplet technique (1) has been successfully used on a series of melt spun alloys with deliberate impurity additions to study the nucleation related aspects of secondary phase selection during solidification of dilute Al alloys....
In the present study, we report on the thermal properties of a series of benzodiazepines. The heat of fusion varied between approximately 25 and 40 kJ mol −1 , except for oxazepam and lorazepam where dimerization in the solid state increased the heat of fusion to 78.54(±0.37) and 77.03...
The mechanism of thermal decomposition of the metal complexes of sulphamethoxazole (SMZ) viz : (Ag(SMZ)H 2 O), (Cd(SMZ) 2 (H 2 O) 2 ), (VO(SMZ) 2 (H 2 O) 2 ), (UO 2 (SMZ) 2 )H 2 O, (Hg(SMZ)2(H2O) 2 ) and (Co(SMZ)2(H2O) 2 )H 2 O has been accomplished on the basis of TG, DTG and DTA studies. The...
The optical transmittance — temperature spectra of well-translucent thin pellets of hydroxyapatite prepared by the high isostatic pressure consolidation of xerogel particles were measured by a newly-developed thermal analysis technique. From these spectra, it was possible to identify...
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