caa a22 4500 463192958 CHVBK 20180406164914.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10973-006-7788-7 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7788-7 Thermalbehavior of glutamic acid and its sodium, lithium and ammonium salts [Elektronische Daten] [R. Nunes, É. Cavalheiro] Glutamic acid (H2glu) and its lithium, sodium and ammonium monosalts were submitted to thermal analysis using thermogravimetry (TG) and differential thermal analysis (DTA). The main goal of these studies was to compare the relative thermal stability and to evaluate the effect of the counter ion in the thermal decomposition pathways. Salts were obtained by direct neutralization of the purified acid with LiOH, NaOH or NH4OH and were characterized by elemental analysis (C, H and N) and IR spectroscopy. Decomposition occurred after conversion to the pyroglutamic acid or the respective pyroglutamates and ammonium salt loosing NH3 being converted to H2glu before decomposition. Springer-Verlag, 2007 food additives nationallicence glutamate alkaline salts nationallicence thermal stability nationallicence Nunes R. Departamento de Química e Física Molecular, Instituto de Química de São Carlos, USP, Av. do Trabalhador São-Carlense 400 Centro, Caixa Postal 780, CEP 13560-970, São Carlos, SP, Brazil aut Cavalheiro É. Departamento de Química e Física Molecular, Instituto de Química de São Carlos, USP, Av. do Trabalhador São-Carlense 400 Centro, Caixa Postal 780, CEP 13560-970, São Carlos, SP, Brazil aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 87/3(2007-03-01), 627-630 1388-6150 87:3<627 2007 87 10973 https://doi.org/10.1007/s10973-006-7788-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7788-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nunes R. Departamento de Química e Física Molecular, Instituto de Química de São Carlos, USP, Av. do Trabalhador São-Carlense 400 Centro, Caixa Postal 780, CEP 13560-970, São Carlos, SP, Brazil aut NATIONALLICENCE 700 1- Cavalheiro É. Departamento de Química e Física Molecular, Instituto de Química de São Carlos, USP, Av. do Trabalhador São-Carlense 400 Centro, Caixa Postal 780, CEP 13560-970, São Carlos, SP, Brazil aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 87/3(2007-03-01), 627-630 1388-6150 87:3<627 2007 87 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer