Chemistry:Praseodymium(III) phosphate
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| O4PPr | |
| Molar mass | 235.877 g·mol−1 |
| Appearance | solid |
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| GHS Signal word | Warning |
| H315, H319, H335 | |
| P261, P264, P264+265Script error: No such module "Preview warning".Category:GHS errors, P271, P280, P302+352, P304+340, P305+351+338, P319Script error: No such module "Preview warning".Category:GHS errors, P321, P332+317Script error: No such module "Preview warning".Category:GHS errors, P337+317Script error: No such module "Preview warning".Category:GHS errors, P362+364Script error: No such module "Preview warning".Category:GHS errors, P403+233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Praseodymium(III) phosphate is an inorganic compound with the chemical formula PrPO4.
Preparation
Praseodymium(III) phosphate hemihydrate can be obtained by reacting praseodymium chloride and phosphoric acid:[2]
- PrCl
3 + H
3PO
4 → PrPO
4 + 3 HCl
It can also be produced by reacting silicon pyrophosphate (SiP2O7) and praseodymium(III,IV) oxide (Pr6O11) at 1200 °C.[3]
Properties
Praseodymium(III) phosphate forms light green crystals in the monoclinic crystal system, with space group P21/n and cell parameters a = 0.676 nm, b = 0.695 nm, c = 0.641 nm, β = 103.25°, Z = 4.[4][5]
It forms a crystal hydrate of the composition PrPO4·nH2O, where n < 0.5, with light green crystals of hexagonal crystal system, space group P6222, and cell parameters a = 0.700 nm, c = 0.643 nm, Z = 3.[6][7]
Praseodymium(III) phosphate reacts with sodium fluoride to obtain Na2PrF2(PO4).[8]
- PrPO
4 + 2 NaF → Na
2PrF
2(PO
4)
References
- ↑ "Praseodymium(III) phosphate" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/3084189#section=Safety-and-Hazards.
- ↑ Hikichi, Yasuo; Hukuo, Ken-iti; Shiokawa, Jiro (Dec 1978). "Syntheses of Rare Earth Orthophosphates". Bulletin of the Chemical Society of Japan 51 (12): 3645–3646. doi:10.1246/bcsj.51.3645. ISSN 0009-2673. http://dx.doi.org/10.1246/bcsj.51.3645.
- ↑ Carlos E. Bamberger, George M. Begun, Dale E. Heatherly (Nov 1983). "Synthesis of Metal Phosphates Using SiP2O7" (in en). Journal of the American Ceramic Society 66 (11): c208–c209. doi:10.1111/j.1151-2916.1983.tb10575.x. ISSN 0002-7820. https://onlinelibrary.wiley.com/doi/10.1111/j.1151-2916.1983.tb10575.x. Retrieved 2022-03-06.
- ↑ Garkavi, Andrey Vladimirovich (2023), "How to Draw Up and Complete a Dissertation, 2nd ed., revised and enlarged", How to Draw up and Complete a Dissertation, 2nd ed., revised and enlarged, OOO "GEOTAR-Media" Publishing Group, pp. 1–80, doi:10.33029/9704-7930-8-hdc-2023-1-80, ISBN 978-5-9704-7930-8, http://dx.doi.org/10.33029/9704-7930-8-hdc-2023-1-80, retrieved 2023-12-06
- ↑ Horchani-Naifer, K.; Férid, M. (2009-04-20). "Crystal structure, energy band and optical characterizations of praseodymium monophosphate PrPO4". Inorganica Chimica Acta 362 (6): 1793–1796. doi:10.1016/j.ica.2008.08.021. ISSN 0020-1693. https://www.sciencedirect.com/science/article/pii/S0020169308005422.
- ↑ Инязовские чтения. Сборник научных статей Первой международной научно-практической конференции Совета молодых ученых МГЛУ. Москва: Московский государственный лингвистический университет. 2022. doi:10.52070/978-5-00120-359-9_2022. ISBN 978-5-00120-359-9. http://dx.doi.org/10.52070/978-5-00120-359-9_2022.
- ↑ Hezel, A.; Ross, S. D. (1967-08-01). "X-ray powder data and cell dimensions of some rare earth orthophosphates". Journal of Inorganic and Nuclear Chemistry 29 (8): 2085–2089. doi:10.1016/0022-1902(67)80469-X. ISSN 0022-1902. https://dx.doi.org/10.1016/0022-1902%2867%2980469-X.
- ↑ ZIMINA, G. V.; SMIRNOVA, I. N.; GORKOVENKO, M. YU.; SPIRIDONOV, F. M.; KOMISSAROVA, L. N.; KALOEV, N. I. (1995-02-21). "ChemInform Abstract: Synthesis and Studies of Fluorophosphates of Rare Earth Elements Na2LnF2PO4.". ChemInform 26 (8). doi:10.1002/chin.199508015. ISSN 0931-7597. http://dx.doi.org/10.1002/chin.199508015.
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