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AbstractAbstract
[en] Complexonometric determination of hafnium in the presence of Ta or Eu in samples which can be decomposed by acids, i.e. in double borides has been investigated. Initial solutions are prepared by fusing with K2S2O8 excess, the fusion was leached by hot water, H2SOL4 was added and Hf was titrated by complexone 3 in the presence of xylenol orange
Original Title
Kompleksonometricheskoe opredelenie gafniya(4) v prisustvii evropiya(3) ili tantala(5)
Primary Subject
Record Type
Journal Article
Journal
Izvestiya Akademii Nauk Gruzinskoj SSR, Seriya Khimicheskaya; CODEN IGSKD; v. 12(2); p. 143-145
Country of publication
ALKALI METAL COMPOUNDS, AMINO ACIDS, BORIDES, BORON COMPOUNDS, CARBOXYLIC ACIDS, CHELATING AGENTS, CHEMICAL ANALYSIS, COMPLEXES, DYES, EUROPIUM COMPOUNDS, HAFNIUM COMPOUNDS, INDICATORS, ORGANIC ACIDS, ORGANIC COMPOUNDS, OXYGEN COMPOUNDS, RARE EARTH COMPOUNDS, SULFUR COMPOUNDS, TANTALUM COMPOUNDS, TRANSITION ELEMENT COMPLEXES, TRANSITION ELEMENT COMPOUNDS
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