Europium(II) fluoride
Names | |
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IUPAC name Europium(II) fluoride | |
Other names Europium difluoride | |
Identifiers | |
CAS Number |
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.203.721 |
PubChem CID |
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CompTox Dashboard (EPA) |
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InChI
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Properties | |
Chemical formula | EuF2 |
Molar mass | 189.96 |
Appearance | dark yellowish solid[1] |
Density | 6.495 g·cm−3 |
Structure[2] | |
Crystal structure | Fluorite structure |
Space group | Fm3m (No. 225) |
Lattice constant | a = 584.23 pm |
Formula units (Z) | 4 |
Hazards | |
GHS labelling: | |
Pictograms | |
Danger | |
Hazard statements | H301 |
Precautionary statements | P264, P270, P301+P310, P321, P330, P405, P501 |
Related compounds | |
Other anions | Europium(II) bromide Europium(II) chloride Europium(II) iodide |
Other cations | Samarium(II) fluoride Thulium(II) fluoride Ytterbium(II) fluoride |
Related compounds | Europium(III) fluoride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
Chemical compound
Europium(II) fluoride is an inorganic compound with a chemical formula EuF2. It was first synthesized in 1937.[1]
Production
Europium(II) fluoride can be produced by reducing europium(III) fluoride with metallic europium or hydrogen gas.[3]
Properties
Europium(II) fluoride is a bright yellowish solid with a fluorite structure.[3]
EuF2 can be used to dope a trivalent rare-earth fluoride, such as LaF3, to create a vacancy-filled structure with increased conductivity over a pure crystal. Such a crystal can be used as a fluoride-specific semipermeable membrane in a fluoride selective electrode to detect trace quantities of fluoride.[4][5]
References
- ^ a b Zhao Yongzhi, Ma Ying, Hou Shaochun, Zhang Wenjuan, Wang Jingjing, Ding Yanrong, Hao Yifan. 氟化亚铕研究现状 Archived 2022-01-14 at the Wayback Machine (lit. Research Progress of Europium(II) Fluoride). Chinese Rare Earths, 2017. 38 (5): 134-140. (in Chinese)
- ^ Greis, Ortwin; Haschke, John M. (1982). "Chapter 45 Rare earth fluorides". Handbook on the Physics and Chemistry of Rare Earths Volume 5. Elsevier. pp. 387–460. doi:10.1016/s0168-1273(82)05008-9. ISSN 0168-1273.
- ^ a b Georg Brauer: Handbuch der Präparativen Anorganischen Chemie. 3., umgearb. Auflage. Band I. Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 255.
- ^ Light, Truman S.; Cappuccino, Carleton C. (April 1975). "Determination of fluoride in toothpaste using an ion-selective electrode". Journal of Chemical Education. 52 (4): 247–250. Bibcode:1975JChEd..52..247L. doi:10.1021/ed052p247. PMID 1133123.
- ^ Frant, Martin S.; Ross, James W. (23 December 1966). "Electrode for Sensing Fluoride Ion Activity in Solution" (PDF). Science. 154 (3756): 1553–1555. Bibcode:1966Sci...154.1553F. doi:10.1126/science.154.3756.1553. JSTOR 1720460. PMID 5924922. S2CID 11042445.
- v
- t
- e
- EuF2
- EuCl2
- EuBr2
- EuI2
- EuH2
- Eu(OH)2
- EuO
- EuS
- EuSe
- EuTe
- EuSO4
- EuTiO3
- EuF3
- EuCl3
- EuBr3
- EuI3
- Eu(OH)3
- Eu2O3
- Eu2Se3
- Eu2Te3
- EuP
- Eu(NO3)3
- EuPO4
- EuCrO4
- EuAsO4
- Eu(IO3)3
- Eu2(CO3)3
- Eu(CH3COO)3
- Eu2(C2O4)3
- BaEuTiO4
Organoeuropium(III) |
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