Tipo
Artigos em Conferência
Tipo de Documento
Resumo
Título
A Digression to Ionic Liquid Metastability – The case of [C2mim][CH3SO3]
Participantes na publicação
Daniel Lozano-Martin (Author)
Universidad de Valladolid
Salomé Inês Cardoso Vieira (Author)
Xavier Paredes (Author)
Dep. Química e Bioquímica
Maria José V. Lourenço (Author)
Dep. Química e Bioquímica
CQE
Carlos A. Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE
Jan V. Sengers (Author)
Klemens Massonne (Author)
BASF AG
Resumo
Abstract: Ionic liquids have been suggested as new engineering fluids, namely in the area of heat transfer, as alternatives to current biphenyl and diphenyl oxide, alkylated aromatics and dimethyl polysiloxane oils, which degrade above 200 °C and pose some environmental problems. Recently, we have proposed 1-ethyl-3-methylimidazolium methanesulfonate, [C2mim][CH3SO3], as a new heat transfer fluid, because of its thermophysical and toxicological properties [1]. \n\nThe behavior of the ionic liquid below the melting point (shown to be Tmelt = 307.8 ± 1 K) [2] demonstrated the existence of metastability, a fact that can justify its use in several industrial applications, extending its temperature range to temperatures lower than the melting temperature.\n\nThis phenomenon was demonstrated by performing accurate measurements of the thermal conductivity of the liquid and solid between 278 and 355 K with an estimated uncertainty of 2% at a 95% confidence level. \n\n[1] - Bioucas, F.E.B.; Vieira, S.I.C.; Lourenço, M.J.V.; Santos, F.; Nieto de Castro, C.A.N.; Massonne, K.; Dos Santos, F.J.V. [C2mim][CH3SO3]—A Suitable New Heat Transfer Fluid? Part 1. Thermophysical and Toxicological Properties. Ind. Eng. Chem. Res. 2018, 57, 8541–8551, DOI: https://doi.org/10.1021/acs.iecr.8b00723 \n[2] - Lozano-Martín, D.; Vieira, S.I.C.; Paredes, X.; Lourenço, M.J.V.; Nieto de Castro, C.A.; Sengers, J.V.; Massonne, K. Thermal Conductivity of Metastable Ionic Liquid [C2mim][CH3SO3], Molecules, 2020, Volume 25(18), 4290. DOI: https://doi.org/10.3390/molecules25184290\n
Editor
NIST
Data de Publicação
2021-06-20
Instituição
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Evento
21st Symposium on Thermophysical Properties, Boulder, CO, USA
Identificadores da Publicação
Local
online (COVID19)
Organizadores
NIST