Skip to main content
SpringerLink
Log in

The reaction of cerium sulfate (III) with orthophosphoric acid and its sodium salts in aqueous solution at 25°

  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    The reaction between cerium sulfate and phosphoric acid and its mono- or disodium salts in aqueous solution gives difficulty soluble precipitates of cerosulfatophosphates, and then of neutral cerophosphate. Acid cerophosphates are not formed.

  2. 2.

    In the system Ce2(SO4)3-Na3PO4-H2O, the reaction between the components leads first to precipitation of basic cerosulfatophosphates, then of basic cerophosphates, and finally of neutral cerophosphate. The pH jump at the ratio PO 3−4 : Ce3+=1 in the starting mixtures of components may be used for the potentiometric titration of cerium salts with Na3PO4 solution.

  3. 3.

    The compactness of the basic and neutral cerophosphates decreases with increase in pH and depends on the PO 3−4 : Ce3+ ratio in the starting mixtures of the components. The precipitates of basic and neutral (at pH>6) cerophosphates gradually oxidize in air even at room temperature.

  4. 4.

    The data obtained explain why the mineral sulfate monacite is found in nature, and why rare earth elements are present in apatite.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  1. A. I. Ul'yanov, Collection “Rare earth elements” (Chemistry, analysis) [in Russian] Academy of Sciences Press USSR Moscow (1962) (in press).

    Google Scholar 

  2. A. I. Ul'yanov, Izv. AN SSSR, Otd. khimn. (1961), 1709.

  3. Collection “Analysis of mineral ores” [in Russian] Goskhimizdat, Leningrad (1956), p. 726.

  4. A. K. Babko and O. M. Ermenko, Ch. analit khimii13, 209 (1958).

    Google Scholar 

  5. S. N. Rozanov, Chemical analysis of fertilizers. No. 1, [in Russian] Goskhimizdat Moscow-Leningrad (1933), p. 38.

    Google Scholar 

  6. Collection “Methods of Chemical Analysis of Mineral Ores” No. 3, [in Russian] Gosgeoltekhizdat, Moscow (1957), p. 76.

  7. V. N. Sveshnikova and V. L. Ginzburg, Ch. neorgan, khimii 7, 1169 (1962).

    Google Scholar 

  8. A. A. Kukharenko, A. G. Bulakh, and K. A. Baklanova, Zapiski Vses. mineral o-va, No. 4 (1961), p. 373.

    Google Scholar 

  9. A. N. Zelikman, Metallurgy of rare earth metals, thorium and uranium [in Russian] GONTI. Moscow (1961), p. 7.

    Google Scholar 

  10. S. K. Voskresenskii, Production of phosphoric acid by decomposition of apatite with sulfuric acid [in Russian] GOSINTI, Moscow (1961), pp. 4–5.

    Google Scholar 

  11. V. V. Serebrennikov, Chemistry of rare earth elements. Vol. 2 [in Russian] Tomsk Institute Press, Tomsk (1961), p. 10.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. N. S. Kurnakov Institute of General and Inorganic Chemistry, Academy of Sciences, USSR

    A. I. Ul'yanov, T. I. Kazakova & E. Ya. Rumyantseva

Authors
  1. A. I. Ul'yanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. T. I. Kazakova
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. E. Ya. Rumyantseva
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ul'yanov, A.I., Kazakova, T.I. & Rumyantseva, E.Y. The reaction of cerium sulfate (III) with orthophosphoric acid and its sodium salts in aqueous solution at 25°. Russ Chem Bull 11, 1824–1833 (1962). https://doi.org/10.1007/BF00921333

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00921333

Keywords

Search

Navigation