Authors:
Anca Mihaela Mocanu“Gh. Asachi” University, Faculty of Chemical Engineering, 71A D. Mangeron Bd, Iassy, Romania

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Lucia Odochian“Al. I. Cuza” University, Faculty of Chemistry, 11 Carol I Bd, Iassy, Romania

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N. Apostolescu“Gh. Asachi” University, Faculty of Chemical Engineering, 71A D. Mangeron Bd, Iassy, Romania

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C. Moldoveanu“Al. I. Cuza” University, Faculty of Chemistry, 11 Carol I Bd, Iassy, Romania

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Abstract

The article is devoted to a comparative study on the thermal degradation of some new diazoaminoderivatives under both air and nitrogen atmosphere by TG-FTIR analysis. The TG–DTG–DTA curves show the thermal degradation in air to present two temperature domains: an endothermic one identical to the case of the degradation under nitrogen and an exothermic one which is not to be found under nitrogen atmosphere. The identification of the gaseous species released by degradation in air within the endothermic domain made evident the presence of the same components of the degradation in nitrogen atmosphere. In the exothermic domain of the sample degradation in air, the CO2, H2O, SO2 species result by the burning of the molecular residues of the first domain. The obtained results afforded a degradation mechanism to be advanced that coincide for the endothermic domain with that of degradation under nitrogen atmosphere. Due to the importance of these compounds as possible reaction initiators and also as potentially bioactive substances (herbicides, acaricides, fungicides), the study on their thermal degradation could give useful information on the environmental impact of the degradation products resulting by the thermal processing of the plants which could possible retain these compounds, when the initial degradation temperature is exceeded.

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  • 3. Mocanu, AM, Odochian, L, Moldoveanu, C, Carja, G, Oniscu, C 2009 Study by thermal methods on some new hydrazinic complexes. Rev Chim 60:928933.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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Author:
J. Davidovits