Neodymium fluoride
Neodymium(III) fluoride is an inorganic chemical compound of neodymium and fluorine with the formula NdF3. It is a purplish pink colored solid with a high melting point. Like other lanthanide fluorides it is highly insoluble in water which allows it to be synthesised from aqueous neodymium nitrate via a reaction with hydrofluoric acid, from which it precipitates as a hydrate:[1]
- Nd(NO3)3(aq) + 3 HF → NdF3•½H2O + 3 HNO3
| Names | |
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| Other names
Neodymium trifluoride | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.033.852  |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| NdF3 | |
| Molar mass | 201.24 g/mol |
| Appearance | vibrant pink/violet solid |
| Density | 6.5g/cm3 |
| Melting point | 1,374 °C (2,505 °F; 1,647 K) |
| Structure | |
| Tricapped trigonal prismatic (nine-coordinate) | |
| Hazards | |
| GHS pictograms |  |
| GHS Signal word | Warning |
| H302, H312, H315, H319, H332, H335 | |
| P261, P264, P270, P271, P280, P301+312, P302+352, P304+312, P304+340, P305+351+338, P312, P321, P322, P330, P332+313, P337+313, P362, P363, P403+233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Anhydrous material may be obtained by the simple drying of the hydrate, in contrast to the hydrates of other neodymium halides, which form mixed oxyhalides if heated.[1]
References
- Greenwood, N. N.; Earnshaw, A. (1997). Chemistry of the elements (2nd ed.). Butterworth-Heinemann. p. 1240. ISBN 0-7506-3365-4.
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