Chemistry:Neodymium fluoride

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Short description: Inorganic chemical compound
Neodymium(III) fluoride
Names
Other names
Neodymium trifluoride
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 237-253-3
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 GHS07: Harmful
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

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

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

  1. 1.0 1.1 Greenwood, N. N.; Earnshaw, A. (1997). Chemistry of the elements (2nd ed.). Butterworth-Heinemann. p. 1240. ISBN 0-7506-3365-4. https://archive.org/details/chemistryelement00earn_087.