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
Neodymium(III) fluoride
Names
Other names
Neodymium trifluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.852
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
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

  1. 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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