Gadolinium(III) fluoride

In today's world, Gadolinium(III) fluoride is a topic that has gained great relevance in different areas of society. Over time, Gadolinium(III) fluoride has proven to be a fundamental piece in decision-making and in the development of various aspects of daily life. Its impact has become so significant that more and more people are seeking information and analysis about Gadolinium(III) fluoride to understand its importance and how it influences their lives. In this article, we will thoroughly explore the role of Gadolinium(III) fluoride today, its evolution over time, and its impact on society.

Gadolinium(III) fluoride
Names
IUPAC name
Gadolinium(III) fluoride
Other names
Gadolinium trifluoride
Gadolinium fluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.958 Edit this at Wikidata
EC Number
  • 237-369-4
  • InChI=1S/3FH.Gd/h3*1H;/q;;;+3/p-3
    Key: TYIZUJNEZNBXRS-UHFFFAOYSA-K
  • F(F)F
Properties
GdF3
Appearance White crystalline powder
Density 7.09 g/cm3
Melting point 1,372 °C (2,502 °F; 1,645 K)
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Safety data sheet (SDS) Safety Data Sheet
Related compounds
Other anions
 Gadolinium(III) chloride
Gadolinium(III) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).

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

Preparation

Gadolinium(III) fluoride can be prepared by heating gadolinium oxide and ammonium bifluoride. The reaction involves 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

Properties

Gadolinium(III) fluoride is a white solid that is insoluble in water. It has an orthorhombic crystal structure with the space group Pnma (space group no. 62).[4]

Uses

Gadolinium(III) fluoride is used to produce fluoride glasses.[5]

References

  1. ^ 郝占忠. 氟化氢铵氟化法合成氟化钆过程的基础研究. 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. 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. 有色金属(冶炼部分), 2010(5):36-39. (in Chinese)
  4. ^ Ans, Jan d'; Ans, Jan d' (1998). Elemente, anorganische Verbindungen und Materialien. Taschenbuch für Chemiker und Physiker / D'Ans (4., neubearb. u. rev. Aufl ed.). Ort nicht ermittelbar: Verlag nicht ermittelbar. ISBN 978-3-540-60035-0.
  5. ^ "Gadolinium(III) fluoride". Thermo Scientific Chemicals.