Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products

Autores
Baschini, Miria Teresita; Pettinari, Gisela Roxana; Valles, Jorge Manuel; Aguzzi, Carola; Cerezo, Pilar; López Galindo, Alberto; Setti, M.; Viseras, César
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Copahue volcano is situated in the province of Neuquén, Argentina. The associated geothermal system causes the occurrence of singular thermal muds with significant presence of sulphur and clay minerals. These peloids are used in the region for the treatment of rheumatic pathologies and arthritis, muscle and bone traumas and dermatological pathologies, and, up to the present, were applied as found in the natural mud pools. This study analyses six natural peloid samples from the Copahue area in order to determine their mineralogical, chemical and textural characteristics, and to evaluate some technical properties. The pH of the aqueous fraction of the mud is acidic, ranging from pH 2.2 to 3.4. The water can be considered as having medium to strong mineralization, according to the concentration of total dissolved solids. The acidity favours the permanence of ions in solution. The one strongly predominating anion is S04 2− (and S2− in equilibrium) with smaller proportions of chloride, fluoride, nitrite and nitrate. As the pH shows, the proton is the dominant cation, followed by Na+, Ca2+, Mg2+ and K+. Three of the samples have high elementary sulphur content (39–51%). The main clay minerals in all cases were beidellite (13% to 39%) and kaolinite (6% to 34%). Other phases detected are alunite (up to 18%), opal,plagioclase, pyrite and Ti and Fe oxyhydroxides. The organic carbon content is due to the organic matter supplied by algae, diatoms and other microorganisms. The adsorption isotherms showed that in comparison to sodium montmorillonite (SWy-2) these peloids retained 22% to 36% water, whereas in comparison with the kaolinite tested (KGa-1b) the water content was 370% to 600%. The cooling kinetic curves showed a low cooling rate. The poultices prepared with the different mud samples took 45–95 min to fall from 50° to 25°. They had good workability due to their liquid limits (45–71%). Application to the skin and the pleasant sensation produced were favoured by the fine grain size, since the clay–silt fraction (b62 μm) ranged from 92% to 99% depending on the sample, and sandy grit did not exceed 8%. Natural peloids from Copahue are a special type of therapeutic mud we could call “clayey–sulphurous mud”, whose thermal properties are similar to those of other known peloids but with special possibilities for the treatment of various pathologies due to the presence of sulphur. Development of similar synthetic peloids could be of interest.
Fil: Baschini, Miria Teresita. Universidad Nacional del Comahue; Argentina
Fil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue; Argentina
Fil: Valles, Jorge Manuel. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina
Fil: Aguzzi, Carola. Universidad de Granada; España
Fil: Cerezo, Pilar. Universidad de Granada; España
Fil: López Galindo, Alberto. Universidad de Granada; España
Fil: Setti, M.. Universidad de Granada; España
Fil: Viseras, César. Universidad de Granada; España
Materia
Pelotherapy
Natural muds
Clayey–sulphurous mud
Copahue
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/284265
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/284265
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care productsBaschini, Miria TeresitaPettinari, Gisela RoxanaValles, Jorge ManuelAguzzi, CarolaCerezo, PilarLópez Galindo, AlbertoSetti, M.Viseras, CésarPelotherapyNatural mudsClayey–sulphurous mudCopahuehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Copahue volcano is situated in the province of Neuquén, Argentina. The associated geothermal system causes the occurrence of singular thermal muds with significant presence of sulphur and clay minerals. These peloids are used in the region for the treatment of rheumatic pathologies and arthritis, muscle and bone traumas and dermatological pathologies, and, up to the present, were applied as found in the natural mud pools. This study analyses six natural peloid samples from the Copahue area in order to determine their mineralogical, chemical and textural characteristics, and to evaluate some technical properties. The pH of the aqueous fraction of the mud is acidic, ranging from pH 2.2 to 3.4. The water can be considered as having medium to strong mineralization, according to the concentration of total dissolved solids. The acidity favours the permanence of ions in solution. The one strongly predominating anion is S04 2− (and S2− in equilibrium) with smaller proportions of chloride, fluoride, nitrite and nitrate. As the pH shows, the proton is the dominant cation, followed by Na+, Ca2+, Mg2+ and K+. Three of the samples have high elementary sulphur content (39–51%). The main clay minerals in all cases were beidellite (13% to 39%) and kaolinite (6% to 34%). Other phases detected are alunite (up to 18%), opal,plagioclase, pyrite and Ti and Fe oxyhydroxides. The organic carbon content is due to the organic matter supplied by algae, diatoms and other microorganisms. The adsorption isotherms showed that in comparison to sodium montmorillonite (SWy-2) these peloids retained 22% to 36% water, whereas in comparison with the kaolinite tested (KGa-1b) the water content was 370% to 600%. The cooling kinetic curves showed a low cooling rate. The poultices prepared with the different mud samples took 45–95 min to fall from 50° to 25°. They had good workability due to their liquid limits (45–71%). Application to the skin and the pleasant sensation produced were favoured by the fine grain size, since the clay–silt fraction (b62 μm) ranged from 92% to 99% depending on the sample, and sandy grit did not exceed 8%. Natural peloids from Copahue are a special type of therapeutic mud we could call “clayey–sulphurous mud”, whose thermal properties are similar to those of other known peloids but with special possibilities for the treatment of various pathologies due to the presence of sulphur. Development of similar synthetic peloids could be of interest.Fil: Baschini, Miria Teresita. Universidad Nacional del Comahue; ArgentinaFil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue; ArgentinaFil: Valles, Jorge Manuel. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; ArgentinaFil: Aguzzi, Carola. Universidad de Granada; EspañaFil: Cerezo, Pilar. Universidad de Granada; EspañaFil: López Galindo, Alberto. Universidad de Granada; EspañaFil: Setti, M.. Universidad de Granada; EspañaFil: Viseras, César. Universidad de Granada; EspañaElsevier Science2010-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/284265Baschini, Miria Teresita; Pettinari, Gisela Roxana; Valles, Jorge Manuel; Aguzzi, Carola; Cerezo, Pilar; et al.; Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products; Elsevier Science; Applied Clay Science; 49; 3; 7-2010; 205-2120169-1317CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0169131710001523info:eu-repo/semantics/altIdentifier/doi/10.1016/j.clay.2010.05.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:34:44Zoai:ri.conicet.gov.ar:11336/284265instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 14:34:44.994CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
title Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
spellingShingle Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
Baschini, Miria Teresita
Pelotherapy
Natural muds
Clayey–sulphurous mud
Copahue
title_short Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
title_full Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
title_fullStr Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
title_full_unstemmed Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
title_sort Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products
dc.creator.none.fl_str_mv Baschini, Miria Teresita
Pettinari, Gisela Roxana
Valles, Jorge Manuel
Aguzzi, Carola
Cerezo, Pilar
López Galindo, Alberto
Setti, M.
Viseras, César
author Baschini, Miria Teresita
author_facet Baschini, Miria Teresita
Pettinari, Gisela Roxana
Valles, Jorge Manuel
Aguzzi, Carola
Cerezo, Pilar
López Galindo, Alberto
Setti, M.
Viseras, César
author_role author
author2 Pettinari, Gisela Roxana
Valles, Jorge Manuel
Aguzzi, Carola
Cerezo, Pilar
López Galindo, Alberto
Setti, M.
Viseras, César
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Pelotherapy
Natural muds
Clayey–sulphurous mud
Copahue
topic Pelotherapy
Natural muds
Clayey–sulphurous mud
Copahue
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Copahue volcano is situated in the province of Neuquén, Argentina. The associated geothermal system causes the occurrence of singular thermal muds with significant presence of sulphur and clay minerals. These peloids are used in the region for the treatment of rheumatic pathologies and arthritis, muscle and bone traumas and dermatological pathologies, and, up to the present, were applied as found in the natural mud pools. This study analyses six natural peloid samples from the Copahue area in order to determine their mineralogical, chemical and textural characteristics, and to evaluate some technical properties. The pH of the aqueous fraction of the mud is acidic, ranging from pH 2.2 to 3.4. The water can be considered as having medium to strong mineralization, according to the concentration of total dissolved solids. The acidity favours the permanence of ions in solution. The one strongly predominating anion is S04 2− (and S2− in equilibrium) with smaller proportions of chloride, fluoride, nitrite and nitrate. As the pH shows, the proton is the dominant cation, followed by Na+, Ca2+, Mg2+ and K+. Three of the samples have high elementary sulphur content (39–51%). The main clay minerals in all cases were beidellite (13% to 39%) and kaolinite (6% to 34%). Other phases detected are alunite (up to 18%), opal,plagioclase, pyrite and Ti and Fe oxyhydroxides. The organic carbon content is due to the organic matter supplied by algae, diatoms and other microorganisms. The adsorption isotherms showed that in comparison to sodium montmorillonite (SWy-2) these peloids retained 22% to 36% water, whereas in comparison with the kaolinite tested (KGa-1b) the water content was 370% to 600%. The cooling kinetic curves showed a low cooling rate. The poultices prepared with the different mud samples took 45–95 min to fall from 50° to 25°. They had good workability due to their liquid limits (45–71%). Application to the skin and the pleasant sensation produced were favoured by the fine grain size, since the clay–silt fraction (b62 μm) ranged from 92% to 99% depending on the sample, and sandy grit did not exceed 8%. Natural peloids from Copahue are a special type of therapeutic mud we could call “clayey–sulphurous mud”, whose thermal properties are similar to those of other known peloids but with special possibilities for the treatment of various pathologies due to the presence of sulphur. Development of similar synthetic peloids could be of interest.
Fil: Baschini, Miria Teresita. Universidad Nacional del Comahue; Argentina
Fil: Pettinari, Gisela Roxana. Universidad Nacional del Comahue; Argentina
Fil: Valles, Jorge Manuel. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentina
Fil: Aguzzi, Carola. Universidad de Granada; España
Fil: Cerezo, Pilar. Universidad de Granada; España
Fil: López Galindo, Alberto. Universidad de Granada; España
Fil: Setti, M.. Universidad de Granada; España
Fil: Viseras, César. Universidad de Granada; España
description Copahue volcano is situated in the province of Neuquén, Argentina. The associated geothermal system causes the occurrence of singular thermal muds with significant presence of sulphur and clay minerals. These peloids are used in the region for the treatment of rheumatic pathologies and arthritis, muscle and bone traumas and dermatological pathologies, and, up to the present, were applied as found in the natural mud pools. This study analyses six natural peloid samples from the Copahue area in order to determine their mineralogical, chemical and textural characteristics, and to evaluate some technical properties. The pH of the aqueous fraction of the mud is acidic, ranging from pH 2.2 to 3.4. The water can be considered as having medium to strong mineralization, according to the concentration of total dissolved solids. The acidity favours the permanence of ions in solution. The one strongly predominating anion is S04 2− (and S2− in equilibrium) with smaller proportions of chloride, fluoride, nitrite and nitrate. As the pH shows, the proton is the dominant cation, followed by Na+, Ca2+, Mg2+ and K+. Three of the samples have high elementary sulphur content (39–51%). The main clay minerals in all cases were beidellite (13% to 39%) and kaolinite (6% to 34%). Other phases detected are alunite (up to 18%), opal,plagioclase, pyrite and Ti and Fe oxyhydroxides. The organic carbon content is due to the organic matter supplied by algae, diatoms and other microorganisms. The adsorption isotherms showed that in comparison to sodium montmorillonite (SWy-2) these peloids retained 22% to 36% water, whereas in comparison with the kaolinite tested (KGa-1b) the water content was 370% to 600%. The cooling kinetic curves showed a low cooling rate. The poultices prepared with the different mud samples took 45–95 min to fall from 50° to 25°. They had good workability due to their liquid limits (45–71%). Application to the skin and the pleasant sensation produced were favoured by the fine grain size, since the clay–silt fraction (b62 μm) ranged from 92% to 99% depending on the sample, and sandy grit did not exceed 8%. Natural peloids from Copahue are a special type of therapeutic mud we could call “clayey–sulphurous mud”, whose thermal properties are similar to those of other known peloids but with special possibilities for the treatment of various pathologies due to the presence of sulphur. Development of similar synthetic peloids could be of interest.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/284265
Baschini, Miria Teresita; Pettinari, Gisela Roxana; Valles, Jorge Manuel; Aguzzi, Carola; Cerezo, Pilar; et al.; Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products; Elsevier Science; Applied Clay Science; 49; 3; 7-2010; 205-212
0169-1317
CONICET Digital
CONICET
url http://hdl.handle.net/11336/284265
identifier_str_mv Baschini, Miria Teresita; Pettinari, Gisela Roxana; Valles, Jorge Manuel; Aguzzi, Carola; Cerezo, Pilar; et al.; Suitability of natural sulphur-rich muds from Copahue (Argentina) for use as semisolid health care products; Elsevier Science; Applied Clay Science; 49; 3; 7-2010; 205-212
0169-1317
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0169131710001523
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.clay.2010.05.008
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.24418

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