Физико-химические исследования бинарных фторидов CaF2-SrF2 разного состава и нанодисперсного фторида Sr0,955Yb0,02Er0,025F2,045 Т. С. Минакова, М. В. Кельман, В. В. Козик [и др.]
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ArticleOther title: Physico-chemical studies of different composition binary fluorides CaF2-SrF2 and nanodispersed fluoride Sr0,955Yb0,02Er0,025F2,045 [Parallel title]Subject(s): бинарные фториды | нанодисперсные фториды | фториды щелочноземельных металлов | физико-химические исследованияGenre/Form: статьи в сборниках Online resources: Click here to access online
In:
Полифункциональные химические материалы и технологии. [Т. 1] : материалы Международной научной конференции, 22-25 мая 2019 г Т. 1. С. 104-106Abstract: In this work, physical and chemical properties of calcium and strontium binary fluorides of different composition and
nanodispersed fluoride Sr0.955Yb0.02Er0.025F2.045 were studied. Complex fluorides were identified by X-ray phase and Xray
fluorescence analyzes methods, as well as IR-spectroscopy method. It was shown that investigated samples CaF2-
SrF2 were large-mesoporous, differ in dispersion, and characterized by specific surface from 16 to 26 m2/g. The results
of pH-metric study and indicator method indicated acidic surface nature of binary fluorides. Acid-base state of
nonporous SrF2 sample, doped by rare earth elements, were close to neutral. Investigation of toxicity was conducted on
Daphnia magna culture, as a result of placing the individuals in the solution. Comparative characteristic of researched
objects was conducted.
Библиогр.: 5 назв.
In this work, physical and chemical properties of calcium and strontium binary fluorides of different composition and
nanodispersed fluoride Sr0.955Yb0.02Er0.025F2.045 were studied. Complex fluorides were identified by X-ray phase and Xray
fluorescence analyzes methods, as well as IR-spectroscopy method. It was shown that investigated samples CaF2-
SrF2 were large-mesoporous, differ in dispersion, and characterized by specific surface from 16 to 26 m2/g. The results
of pH-metric study and indicator method indicated acidic surface nature of binary fluorides. Acid-base state of
nonporous SrF2 sample, doped by rare earth elements, were close to neutral. Investigation of toxicity was conducted on
Daphnia magna culture, as a result of placing the individuals in the solution. Comparative characteristic of researched
objects was conducted.
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