<strong>Thermal characterization of ethylammonium nitrate </strong>

Abstract

Thermal analysis techniques (DSC and TG) were used to characterize the melting and crystallization temperatures as well as the thermal stability of the ionic liquid ethylammonium nitrate. A detailed analysis of the solid-liquid transition is reported monitoring cooling -heating cycles by means of differential scanning calorimetry (DSC) and thermogravimetric balance, in the interval extending from -75 ºC to 100 ºC.The observed melting and solidification temperatures are in good agreement with previously reported ones in electrical conductivity analysis, and a novel cold crystallization at -40 ºC. The thermal analysis confirms the rich phase behaviour of a good glass-former, with a cold crystallization upon heating and a quite large supercooled region (-28, 17 ) ºC. Moreover, a fairly good thermal stability was detected by means of the thermogravimetric analysis up to 140-160 ºC, although the onset temperatures both in air and nitrogen atmospheres were found to lie well above this value.

Process for Preparing Value-Added Products from Microalgae Using Textile Effluent through a Biorefinery Approach

“…Thermal analysis using a differential scanning calorimeter (DSC) was used to characterize the melting ( T m ) and freezing temperatures of the ionic liquid ethylammonium nitrate (EAN; Figure ). The observed freezing point of the synthesized EAN was around −50 °C and T m of EAN is 13 °C . However, EAN was found to be showing a good thermal stability at a temperature >150 °C through thermogravimetric analysis (TGA).…”

“…The observed freezing point of the synthesized EAN was around −50 °C and T m of EAN is 13 °C. 56 However, EAN was found to be showing a good thermal stability at a temperature >150 °C through thermogravimetric analysis (TGA).…”

Ecotoxicological Evaluation of Ethylammonium Nitrate and Aluminium Salt Mixture

“…The IL used in this work, ethylammonium nitrate (EAN), is considered as RTIL (roomtemperature IL); this compound presents water like properties [10] and mainly due to its ability to form hydrogen bounds, some studies as an electrolyte, additive, detergent or precipitating agent among other applications can be found in recent literature [11][12][13]. But, in spite of their applicability and the high probably of spills and filtration into terrestrial and aquatic environments, studies about their toxicity on these environments are very scarce.…”