Scandium(III) phosphate

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Scandium(III) phosphate
Sc3+.svg Phosphat-Ion.svg
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 239-188-6
PubChem CID
  • InChI=1S/H3O4P.Sc/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3
    Key: DYRWWVFQQONJJK-UHFFFAOYSA-K
  • [O-]P(=O)([O-])[O-].[Sc+3]
Properties
ScPO4
Molar mass 139.926 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Scandium(III) phosphate is an inorganic compound of scandium, with the molecular formula ScPO4. [1]

Contents

It also occurs naturally as the rare mineral pretulite. [2] [3] [4]

Preparation

It can be prepared by heating scandium oxide and dilute phosphoric acid for at least a week at 400°C, yielding anhydrous scandium phosphate. Lower temperatures produce hydrates and mixtures of hydrates. [1]

Properties

Anhydrous scandium phosphate crystalizes in the zircon structure. [1]

References

  1. 1 2 3 Mooney, R. C. L. (1956-08-01). "The structure of anhydrous scandium phosphate" (PDF). Acta Crystallographica. 9 (8). International Union of Crystallography (IUCr): 677–678. Bibcode:1956AcCry...9..677M. doi: 10.1107/s0365110x56001807 . ISSN   0365-110X . Retrieved 2025-08-09.
  2. ↑ Strunz, Hugo; Nickel, Ernest H. (2001). Strunz Mineralogical Tables. Stuttgart: Schweizerbart'sche. p. 436. ISBN   3-510-65188-X.
  3. ↑ Výravský, Jakub; Novák, Milan; Škoda, Radek (2017). "Formation of pretulite (ScPO4 ) by recrystallization of Sc-rich precursors in Dolní Bory pegmatite: Evidence for different mobility of Sc, Y, REE and Zr in hydrothermal conditions". Chemical Geology. 449. Elsevier BV: 30–40. Bibcode:2017ChGeo.449...30V. doi:10.1016/j.chemgeo.2016.11.031. ISSN   0009-2541.
  4. ↑ Bernhard, Franz; Walter, Franz; Ettinger, Karl; Taucher, Josef; Mereiter, Kurt (June 1, 1998). "Pretulite, ScPO4 ; a new scandium mineral from the Styrian and Lower Austrian lazulite occurrences, Austria". American Mineralogist. 83 (5–6): 625–630. Bibcode:1998AmMin..83..625B. doi: 10.2138/am-1998-5-621 . ISSN   0003-004X.
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