The thermal decomposition of iminodiacetic, oxydiacetic, and thiodiacetic acids in helium atmosphere has been studied by means of thermogravimetry (TG), differential thermal analysis (DTA) and temperature-programmed pyrolysis directly coupled with mass spectrometry (TPPy-MS). Evolved gas analysis (EGA) profiles of iminodiacetic and oxydiacetic acids were obtained and compared with TG and DTA profiles. The decomposition of iminodiacetic acid forms water, CO, CO2, CH3CN, HCN and some hydrocarbons. After water evolution a cyclic anhydride is formed, as well as for oxydiacetic acid. Thiodiacetic acid vaporizes without decomposition.

Thermal behaviour of iminodiacetic, oxydiacetic and thiodiacetic acids / Vinciguerra, Vittorio; Bucci, Remo; Marini, Federico; Napoli, Aldo. - In: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. - ISSN 1388-6150. - STAMPA. - 83:2(2006), pp. 475-478. [10.1007/s10973-005-6939-6]

Thermal behaviour of iminodiacetic, oxydiacetic and thiodiacetic acids

BUCCI, Remo;MARINI, Federico;NAPOLI, Aldo
2006

Abstract

The thermal decomposition of iminodiacetic, oxydiacetic, and thiodiacetic acids in helium atmosphere has been studied by means of thermogravimetry (TG), differential thermal analysis (DTA) and temperature-programmed pyrolysis directly coupled with mass spectrometry (TPPy-MS). Evolved gas analysis (EGA) profiles of iminodiacetic and oxydiacetic acids were obtained and compared with TG and DTA profiles. The decomposition of iminodiacetic acid forms water, CO, CO2, CH3CN, HCN and some hydrocarbons. After water evolution a cyclic anhydride is formed, as well as for oxydiacetic acid. Thiodiacetic acid vaporizes without decomposition.
2006
decomposition mechanism; differential thermal analysis; simultaneous thermogravimetry; temperature-programmed pyrolysis-mass spectrometry (tppy-ms); thermal decomposition
01 Pubblicazione su rivista::01a Articolo in rivista
Thermal behaviour of iminodiacetic, oxydiacetic and thiodiacetic acids / Vinciguerra, Vittorio; Bucci, Remo; Marini, Federico; Napoli, Aldo. - In: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. - ISSN 1388-6150. - STAMPA. - 83:2(2006), pp. 475-478. [10.1007/s10973-005-6939-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/232211
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