Variations in the texture profile analysis (TPA) properties of clay/mineral-medicinal water mixtures for pelotherapy: Effect of anion type
Entity
UAM. Departamento de Geología y GeoquímicaPublisher
MDPI AGDate
2019-03-01Citation
10.3390/min9030144
Minerals 9.3 (2019): 144
ISSN
2075-163XDOI
10.3390/min9030144Editor's Version
https://doi.org/10.3390/min9030144Subjects
Adhesiveness; Bentonite; Common clay; Hardness; Instrumental texture; Mineral-medicinal water; Sepiolite; GeologíaRights
© 2019 by the authors. Licensee MDPI, Basel, SwitzerlandAbstract
A peloid’s liquid phase can be mineral, sea or salt-lake water. This study examines the interactions among three materials, two special clays (bentonite and sepiolite) and one common clay, and three chemically different mineral-medicinal waters. In all clay–water mixtures, the hardness and adhesiveness decreased with the amount of water in the mixture. For a given hardness or adhesiveness, sepiolite retained more water than the other clays, especially in the presence of sulphate-rich mineral-medicinal water (73%). In contrast, the common clay retained the least amount of water (26%), and the bentonite samples returned an intermediate value for the amount of retained water (52–53%). These differences had a strong influence on the thermal behaviour of the mixtures and, hence, should be taken into account for their use in thermotherapy applications. There were no significant differences in the instrumental texture of the clay pastes according to the predominant anion in the mineral-medicinal waters
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Google Scholar:Pozo Rodríguez, Manuel
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Armijo, Francisco
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Maraver, Francisco
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Zuluaga, Pilar
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Ejeda, José Manuel
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Corvillo, Iluminada
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