TGA/FTIR study of the behavior of sodium and potassium citrates in the decomposition of 3R4F tobacco. N2 and air atmospheres

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Title: TGA/FTIR study of the behavior of sodium and potassium citrates in the decomposition of 3R4F tobacco. N2 and air atmospheres
Authors: Marcilla, Antonio | Gómez-Siurana, Amparo | Beltrán, M.I. | Martínez Castellanos, Isabel | Blasco López, Inmaculada | Berenguer Muñoz, Deseada
Research Group/s: Procesado y Pirólisis de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química
Keywords: FTIR | TGA | Sodium citrate | Potassium citrate | Tobacco
Knowledge Area: Ingeniería Química
Issue Date: 10-Nov-2017
Publisher: Elsevier
Citation: Thermochimica Acta. 2017, 657: 31-38. doi:10.1016/j.tca.2017.09.017
Abstract: Citrates are common burning aids added to tobacco. In this work, the effect of the cation present in the citrate, sodium and potassium, on its thermal and oxidative decomposition was studied. Citrates decompose in three stages, elimination of water, loss of CO2, and decomposition of the remaining material. Under N2 atmosphere, the first stage occurs at lower temperatures for sodium citrate than for potassium citrate. The second one takes place at lower temperatures for potassium citrate, whereas the last stage occurs at similar temperatures for both citrates. Moreover, under air atmosphere, sodium citrate decomposes at temperatures higher than potassium citrate. When mixed with tobacco both additives present similar behavior in inert atmosphere and produce almost no modification of the behavior of tobacco with no additive. Nevertheless, under air atmosphere, the temperature of the process associated with the combustion of tobacco is noticeably reduced and a new process appears at high temperatures.
Sponsor: Financial support for this investigation has been provided by the Spanish Ministerio de Economía, Industria y Competitividad (CTQ2015-70726/P), and the Generalitat Valenciana (PROMETEO2016/056).
URI: http://hdl.handle.net/10045/69849
ISSN: 0040-6031 (Print) | 1872-762X (Online)
DOI: 10.1016/j.tca.2017.09.017
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Elsevier B.V.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.tca.2017.09.017
Appears in Collections:INV - GTP3 - Artículos de Investigación sobre Procesado de Polímeros

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