Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling

Detalhes bibliográficos
Autor(a) principal: Arrad, Mouad
Data de Publicação: 2018
Outros Autores: Aliyeva, Mehriban, Vilas-Boas, Sérgio M., Kaddami, Mohammed, Sippola, Hannu, Taskinen, Pekka, Pinho, Simão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/18544
Resumo: The water activities of manganese nitrate solutions were measured using a humidity sensor instrument up to almost the saturation molality at 298.15 K; the thermodynamic properties of the system were described by the Pitzer model and specific interaction theory (SIT). The evaluation of the ion interaction parameters for the Pitzer model and SIT were carried out using experimental freezing points and osmotic coefficients of manganese nitrate aqueous solutions, collected from the open literature, and the water activity data measured in this work. A set of Pitzer and SIT parameters were estimated using a temperature dependency, that enables us to cover wider temperature ranges, and consequently calculate system properties to higher molalities. Both approaches represent very satisfactorily, and with similar accuracy, the experimental data and the calculated manganese nitrate molal activity coefficients are comparable to those already published for analogous systems. Additionally, the Pitzer model was also able to calculate the ice curve and the solubility branch of manganese nitrate hexahydrate up to a salt solution 6.5 mol-kg-1.
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spelling Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modelingFreezing pointsOsmotic coefficientPitzerSITSolubilityThe water activities of manganese nitrate solutions were measured using a humidity sensor instrument up to almost the saturation molality at 298.15 K; the thermodynamic properties of the system were described by the Pitzer model and specific interaction theory (SIT). The evaluation of the ion interaction parameters for the Pitzer model and SIT were carried out using experimental freezing points and osmotic coefficients of manganese nitrate aqueous solutions, collected from the open literature, and the water activity data measured in this work. A set of Pitzer and SIT parameters were estimated using a temperature dependency, that enables us to cover wider temperature ranges, and consequently calculate system properties to higher molalities. Both approaches represent very satisfactorily, and with similar accuracy, the experimental data and the calculated manganese nitrate molal activity coefficients are comparable to those already published for analogous systems. Additionally, the Pitzer model was also able to calculate the ice curve and the solubility branch of manganese nitrate hexahydrate up to a salt solution 6.5 mol-kg-1.This work was developed in the scope of the projects POCI-01-0145-FEDER- 006984—Associate Laboratory LSRE-LCM both funded by European Regional Development Fund (ERDF) through COMPETE2020—Programa Operacional Competitividade e Internacionalização (POCI)—and by national funds through FCT—Fundação para a Ciência e a Tecnologia. This work is also a result of project ‘‘AIProcMat@N2020—Advanced Industrial Processes and Materials for a Sustainable Northern Region of Portugal 2020’’, with the reference NORTE-01-0145-FEDER-000006, supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the Portugal 2020 Partnership Agreement, through ERDF.Biblioteca Digital do IPBArrad, MouadAliyeva, MehribanVilas-Boas, Sérgio M.Kaddami, MohammedSippola, HannuTaskinen, PekkaPinho, Simão2018-01-19T10:00:00Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/18544engArrad, Mouad; Aliyeva, Mehriban; Vilas-Boas, Sérgio M.; Kaddami, Mohammed; Sippola, Hannu; Taskinen, Pekka; Pinho, Simão P. (2018). Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling. Journal of Solution Chemistry. ISSN 0095-9782. 47, p. 774-7860095-978210.1007/s10953-018-0753-9info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-20T01:18:02Zoai:bibliotecadigital.ipb.pt:10198/18544Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:08:52.733225Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
title Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
spellingShingle Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
Arrad, Mouad
Freezing points
Osmotic coefficient
Pitzer
SIT
Solubility
title_short Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
title_full Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
title_fullStr Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
title_full_unstemmed Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
title_sort Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling
author Arrad, Mouad
author_facet Arrad, Mouad
Aliyeva, Mehriban
Vilas-Boas, Sérgio M.
Kaddami, Mohammed
Sippola, Hannu
Taskinen, Pekka
Pinho, Simão
author_role author
author2 Aliyeva, Mehriban
Vilas-Boas, Sérgio M.
Kaddami, Mohammed
Sippola, Hannu
Taskinen, Pekka
Pinho, Simão
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Arrad, Mouad
Aliyeva, Mehriban
Vilas-Boas, Sérgio M.
Kaddami, Mohammed
Sippola, Hannu
Taskinen, Pekka
Pinho, Simão
dc.subject.por.fl_str_mv Freezing points
Osmotic coefficient
Pitzer
SIT
Solubility
topic Freezing points
Osmotic coefficient
Pitzer
SIT
Solubility
description The water activities of manganese nitrate solutions were measured using a humidity sensor instrument up to almost the saturation molality at 298.15 K; the thermodynamic properties of the system were described by the Pitzer model and specific interaction theory (SIT). The evaluation of the ion interaction parameters for the Pitzer model and SIT were carried out using experimental freezing points and osmotic coefficients of manganese nitrate aqueous solutions, collected from the open literature, and the water activity data measured in this work. A set of Pitzer and SIT parameters were estimated using a temperature dependency, that enables us to cover wider temperature ranges, and consequently calculate system properties to higher molalities. Both approaches represent very satisfactorily, and with similar accuracy, the experimental data and the calculated manganese nitrate molal activity coefficients are comparable to those already published for analogous systems. Additionally, the Pitzer model was also able to calculate the ice curve and the solubility branch of manganese nitrate hexahydrate up to a salt solution 6.5 mol-kg-1.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-19T10:00:00Z
2018
2018-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/18544
url http://hdl.handle.net/10198/18544
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Arrad, Mouad; Aliyeva, Mehriban; Vilas-Boas, Sérgio M.; Kaddami, Mohammed; Sippola, Hannu; Taskinen, Pekka; Pinho, Simão P. (2018). Water activity and freezing points in aqueous solutions of manganese nitrate: experimental and modeling. Journal of Solution Chemistry. ISSN 0095-9782. 47, p. 774-786
0095-9782
10.1007/s10953-018-0753-9
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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