Yttrium(III) phosphate
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| IUPAC name
Yttrium phosphate
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.034.341 |
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PubChem CID
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CompTox Dashboard (EPA)
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| 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).
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Yttrium phosphate, YPO4, is the phosphate salt of yttrium.[1] It occurs in nature as minerals xenotime[2] and weinschenkite.[3]
Preparation
[edit]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•H2O 35-40°C
→ YPO4 + 3NH4Cl + 3H2O
Properties
[edit]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
[edit]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.
References
[edit]- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 526. ISBN 978-0-08-037941-8.
- ^ a b c 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.
- ^ minsocam.org: WEINSCHENKITE, YTTRIUM PHOSPHATE DIHYDRATE, retrieved 16 May 2014
- ^ Georg Brauer: Handbuch der Präparativen Anorganischen Chemie. 3., umgearb. Auflage. Band I. Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1114.
- ^ Руководство по неорганическому синтезу: В 6-ти т. Vol. 4. М.: Мир. 1985.
{{cite book}}: Unknown parameter|agency=ignored (help) - ^ Справочник химика. Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия. 1966.
{{cite book}}: Unknown parameter|agency=ignored (help) - ^ 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.
- ^ Alsfasser, Ralf (2007). Moderne anorganische Chemie: mit CD-ROM (in German). de Gruyter. ISBN 978-3-11-019060-1.
- ^ "铈激活磷酸钇发光材料_爱学术". www.ixueshu.com. Retrieved 2023-06-21.