Synthesis and stability of some members of the pharmacosiderite group, AFe4(OH)4(AsO4)3.nH2O (A = K, Na, 0.5Ba, 0.5Sr)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00519714" target="_blank" >RIV/68378271:_____/19:00519714 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3749/canmin.1900035" target="_blank" >https://doi.org/10.3749/canmin.1900035</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3749/canmin.1900035" target="_blank" >10.3749/canmin.1900035</a>

Result language
angličtina
Original language name
Synthesis and stability of some members of the pharmacosiderite group, AFe4(OH)4(AsO4)3.nH2O (A = K, Na, 0.5Ba, 0.5Sr)
Original language description
Samples of the pharmacosiderite group were synthesized either directly, from aqueous solutions, or by ion exchange over extended periods of time. In more than 200 experiments, no pure pharmacosiderite sample was obtained, and a protocol was developed to remove scorodite and arsenical iron oxides from the samples. In this way, K-, Na-, Ba-, and Sr-dominant pharmacosiderite samples were prepared. The chemical compositions of the two samples used for further experiments were Ba0.702Fe4[(AsO4)0.953(SO4)0.047]3(OH)3.455O0.545.5.647H2O and K1.0861.086Fe4[(AsO4)0.953(SO4)0.047]3(OH)3.772O0.228.4.432H2O. In t his work their properties and crystal structure were studied and the results are presented.n
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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