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techniques; TG, DTG, and DTA curves were recorded on a derivatograph (type Q-1500) using samples of 100 mg with α-Al 2 O 3 as reference material in static air atmosphere. From TG, DTA, and DTG curves, solid intermediate products are determined and confirmed

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-obtained intermediates were dissolved in chloroform. The solvent was then evaporated under reduced pressure that resulted in the formation of yellowish-brown intermediate, which was further purified by TLC using precoated silica gel 60 F254 plates and flash column

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estimation of product yields at intermediate stages of conversion. A promising approach to specify thermodynamic solutions is the models of extreme intermediate states suggested at MESI. They develop the methodology of classical equilibrium

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Journal of Thermal Analysis and Calorimetry
Authors: Dumitru Oancea, Valentin Munteanu, Domnina Razus, and Maria Mitu

gradient between the solid catalyst and the surrounding gas, the existence of a self-acceleration process cannot be attributed to the reaction exothermicity; only the multiplication (branching) of the active intermediates on the catalyst surface can account

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temperature to 130 °C and 135–260 °C) associated with endothermic effects correspond to evolution of residual water molecules. Further decomposition steps that are associated with small but narrow endothermic peaks correspond to intermediate formation of aqua

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Journal of Thermal Analysis and Calorimetry
Authors: Annamária Krajníková, Katarína Győryová, Jana Kovářová, Daniela Hudecová, Jana Hubáčková, Faten Nour El-Dien, and Marián Koman

Complexone III as an agent and Eriochrome black T as an indicator. The IR spectra of the prepared zinc complex compounds and the solid intermediates of thermal decomposition were recorded on an AVATAR 330 FT-IR Thermo Nicolet spectrometer using KBr

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occupied sites. Besides, all of the surface species were assumed to be reactive intermediates; so that the net rate of formation of the surface species were taken as zero under steady state. The elementary steps involved in the considered mechanisms are

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on the thermal decomposition of transition metal amine complexes, not many studies has been reported to date with regard to the evolved gas analysis (EGA) during thermal decomposition and also in detecting the transient intermediates formed during

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thermogravimetry and differential thermal analysis (TG-DTA, Setaram TGDTA 92) in the temperature range 30–800 °C at a heating rate of 10 °C min −1 , under an ambient atmosphere. The intermediate and final compounds of thermal decomposition of the

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Journal of Thermal Analysis and Calorimetry
Authors: Annamária Krajníková, Katarína Győryová, Daniela Hudecová, Jana Kovářová, and Zuzana Vargová

compounds and the solid intermediates of thermal decomposition were recorded on an AVATAR 330 FT-IR Thermo Nicolet spectrometer using KBr pellets (2 mg/200 mg KBr), in the range 4000–400 cm −1 . Thermal decomposition was studied in nitrogen

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