Determination of zirconium,thorium and scandium with 2,5-dihydroxy-1,4-benzoquinone |
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| Authors: | S.P. Singhal D.E. Ryan |
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| Affiliation: | Department of Chemistry, Dalhousie University, Halifax, Nova ScotiaCanada |
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| Abstract: | Zirconium is quantitatively precipitated by 2,5-dihydroxy-1,4-benzoquinone and is separated from scandium in 1 N hydrochloric acid solution. Thorium is separated at pH 0.5 from uranium(VI), cerium(IV), lanthanum, yttrium and scandium. Scandium is quantitatively precipitated by this reagent in the pH range 1.4–2.0 and at pH 1.5 equivalent amounts of lanthanum do not interfere; small amounts of yttrium cause interference. |
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