Thulium(III) fluoride

Thullium(III) fluoride is an inorganic compound with the chemical formula TmF₃.

Thulium(III) fluoride

Identifiers
CAS Number	13760-79-7
3D model (JSmol)	Interactive image
ChemSpider	75532
ECHA InfoCard	100.033.943
EC Number	237-353-7
PubChem CID	83710
CompTox Dashboard (EPA)	DTXSID8065612
InChI InChI=1S/3FH.Tm/h3*1H;/q;;;+3/p-3 Key: AATUHDXSJTXIHB-UHFFFAOYSA-K
SMILES F[Tm](F)F
Properties
Chemical formula	TmF3
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H301, H311, H315, H319, H331, H335
GHS precautionary statements	P261, P264, P270, P271, P280, P301+310, P302+352, P304+340, P305+351+338, P311, P312, P321, P322, P330, P332+313, P337+313, P361, 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

Production

It can be produced by reacting thulium(III) sulfide and hydrofluoric acid, followed by thermal decomposition:[1]

3 Tm₂S₃ + 20 HF + (2 + 2x)H₂O → 2 (H₃O)Tm₃F₁₀·xH₂O↓ + 9 H₂S↑ (x=1.7)

(H₃O)Tm₃F₁₀ → 3 TmF₃ + HF↑ + H₂O↑

Thulium(III) oxide reacts with fluorinating agents such as hydrogen fluoride,[2] nitrogen trifluoride[3] xenon difluoride[4] to create thullium(III) fluoride as well, although the reaction with nitrogen trifluoride is incomplete and produces a mixture of TmOF and TmF₃.[3]

References

1. O.V. Andrrev, I.A. Razumkova, A.N. Boiko (March 2018). "Synthesis and thermal stability of rare earth compounds REF₃, REF₃·nH₂O and (H₃O)RE₃F₁₀·nH₂O (RE = Tb − Lu, Y), obtained from sulphide precursors". Journal of Fluorine Chemistry. 207: 77–83. doi:10.1016/j.jfluchem.2017.12.001. Retrieved 2019-03-26.CS1 maint: multiple names: authors list (link)
2. Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 254.
3. Randall D. Scheele, Bruce K. McNamara, Andrew M. Casella, Anne E. Kozelisky, Doinita Neiner (February 2013). "Thermal NF3 fluorination/oxidation of cobalt, yttrium, zirconium, and selected lanthanide oxides". Journal of Fluorine Chemistry. 146: 86–97. doi:10.1016/j.jfluchem.2012.12.013. Retrieved 2019-03-26.CS1 maint: multiple names: authors list (link)
4. Brekhovskikh, M. N.; Popov, A. I.; Kiselev, Yu. M.; Fedorov, V. A.; Sobolev, B. P. Interaction of xenon difluoride with rare earth element, zirconium, and hafnium oxides(in Russian). Vysokochistye Veshchestva, 1987. 5: 83-86. ISSN: 0235-0122.