Gadolinium(III) fluoride

Gadolinium(III) fluoride
Identifiers
CAS Number	13765-26-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	75538;
ECHA InfoCard	100.033.958
EC Number	237-369-4;
PubChem CID	10176739;
CompTox Dashboard (EPA)	DTXSID8065618 ;
	InChI InChI=1S/3FH.Gd/h3*1H;/q;;;+3/p-3 Key: TYIZUJNEZNBXRS-UHFFFAOYSA-K;
	SMILES [F-].[F-].[F-].[Gd+3];
Properties
Chemical formula	GdF3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Gadolinium(III) fluoride is an inorganic compound with a chemical formula GdF₃.

Production

Gadolinium(III) fluoride can be produced by heating gadolinium oxide and ammonium bifluoride, and the reaction have two steps:[1][2]

Gd₂O₃ + 6 NH₄HF₂ → 2 NH₄GdF₄ + 4 NH₄F + 3 H₂O

NH₄GdF₄ → GdF₃ + NH₃ + HF

Alternatively, reacting gadolinium chloride with hydrofluoric acid and adding hot water produces GdF₃·xH₂O (x＝0.53). Anhydrous gadolinium(III) fluoride can then be produced by heating the hydrate with ammonium bifluoride; without the bifluoride, GdOF is formed instead.[3]

GdCl₃ + 3 HF + x H₂O → GdF₃·xH₂O + 3 HCl

gollark: -0.6.

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gollark: Intermediate Frequency Coltrans G.

References

郝占忠. 氟化氢铵氟化法合成氟化钆过程的基础研究[J]. 材料科学与工艺, 2010, 18(5):653-656.(in Chinese)
郝占忠, 王斌. Gd₂O₃－NH₄HF₂系制备氟化钆机制及工艺研究[J]. 稀有金属, 2007, 31(1):97-101.(in Chinese)
郝占忠. 湿法氟化制备水合氟化钆的脱水机制及其氧的行为[J]. 有色金属(冶炼部分), 2010(5):36-39. (in Chinese)

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[1] 郝占忠. 氟化氢铵氟化法合成氟化钆过程的基础研究[J]. 材料科学与工艺, 2010, 18(5):653-656.(in Chinese)

[2] 郝占忠, 王斌. Gd₂O₃－NH₄HF₂系制备氟化钆机制及工艺研究[J]. 稀有金属, 2007, 31(1):97-101.(in Chinese)

[3] 郝占忠. 湿法氟化制备水合氟化钆的脱水机制及其氧的行为[J]. 有色金属(冶炼部分), 2010(5):36-39. (in Chinese)