Yttrium(III) phosphate

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Yttrium(III) phosphate
YPO4.png
Names
IUPAC name
Yttrium phosphate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.341 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 237-790-3
PubChem CID
  • InChI=1S/H3O4P.Y/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3
    Key: UXBZSSBXGPYSIL-UHFFFAOYSA-K
  • InChI=1/H3O4P.Y/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3
    Key: UXBZSSBXGPYSIL-DFZHHIFOAS
  • [O-]P(=O)([O-])[O-].[Y+3]
Properties
YPO4
Molar mass 183.877
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
A sample of the mineral xenotime (YPO4) Xenotimio1.jpeg
A sample of the mineral xenotime (YPO4)

Yttrium phosphate, YPO4, is the phosphate salt of yttrium. [1] It occurs in nature as minerals xenotime [2] and weinschenkite. [3]

Contents

Preparation

Yttrium phosphate can be obtained by reacting yttrium chloride and sodium phosphate, or by reacting yttrium nitrate and diammonium hydrogen phosphate in solution: [2]

YCl3 + (NH4)3PO4 → YPO4 ↓ + 3 NH4Cl
Y(NO3)3 + (NH4)2HPO4 → YPO4 ↓ + 2 NH4NO3 + HNO3

Yttrium phosphate can also be prepared by the reaction of yttrium(III) oxide and diammonium hydrogen phosphate: [4]

Y2O3 + 2 (NH4)2HPO4 → YPO4 + 2 NH3 + 3 H2O

Yttrium chloride and phosphoric acid are mixed at 35~40°C, and then ammonia solution is added dropwise to react: [5]

YCl3 + H3PO4 + 3NH3•H2O35-40°C
→YPO4 + 3NH4Cl + 3H2O

Properties

Yttrium phosphate belongs to the tetragonal crystal system, and the unit cell parameters are a=0.68832 nm, c=0.60208 nm. It can exist as a monohydrate, dihydrate or the anhydrous form. The dihydrate belongs to the monoclinic crystal system, the space group is B 2/b, and the unit cell parameters are a=0.648 nm, b=1.512 nm, c=0.628 nm, β=129.4°, Z=4. [6]

Yttrium phosphate reacts with concentrated alkali to form yttrium hydroxide. [7]

Uses

Yttrium phosphate is used as a catalyst and is a potential containment material for nuclear waste. [2] Ce3+-doped yttrium phosphate shows luminescence in the UV range and can be used for tanning lamps. [8] [9] Double-doped materials such as Ce3+-Tb3+ have also been reported.

Related Research Articles

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<span class="mw-page-title-main">Europium(III) chloride</span> Chemical compound

Europium(III) chloride is an inorganic compound with the formula EuCl3. The anhydrous compound is a yellow solid. Being hygroscopic it rapidly absorbs water to form a white crystalline hexahydrate, EuCl3·6H2O, which is colourless. The compound is used in research.

<span class="mw-page-title-main">Diammonium phosphate</span> Chemical compound

Diammonium phosphate (DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH4)2(HPO4)) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid.

<span class="mw-page-title-main">Ammonium phosphate</span> Chemical compound

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References

  1. ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 526. ISBN   978-0-08-037941-8.
  2. 1 2 3 Macintyre, Jane Elizabeth; Daniel, F. M.; Stirling, V. M. (1992). Dictionary of inorganic compounds. London Glasgow New York [etc.]: Chapman & Hall. ISBN   978-0-412-30120-9.
  3. ↑ minsocam.org: WEINSCHENKITE, YTTRIUM PHOSPHATE DIHYDRATE, retrieved 16 May 2014
  4. ↑ Georg Brauer: Handbuch der Präparativen Anorganischen Chemie. 3., umgearb. Auflage. Band I. Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1114.
  5. ↑ Ред. Брауэр Г., ed. (1985). Руководство по неорганическому синтезу: В 6-ти т. Vol. 4. М.: Мир.
  6. ↑ Редкол.: Никольский Б.П. и др., ed. (1966). Справочник химика. Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия.
  7. ↑ Yi, Xianwu; Huang, Chunhui (2011). Kang. Wu ji hua xue cong shu (Di san ci yin shua ed.). Bei jing: Ke xue chu ban she. ISBN   978-7-03-030574-9.
  8. ↑ Alsfasser, Ralf (2007). Moderne anorganische Chemie: mit CD-ROM (in German). de Gruyter. ISBN   978-3-11-019060-1.
  9. ↑ "铈激活磷酸钇发光材料_爱学术". www.ixueshu.com. Retrieved 2023-06-21.
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