Gadolinium (III) fluoride

Crystal structure
__ Gd 3+      __ F -
Crystal system	orthorhombic
Space group	Pnma (No. 62)
General
Surname	Gadolinium (III) fluoride
other names	Gadolinium trifluoride Gadolinium fluoride
Ratio formula	GdF 3
Brief description	white solid
External identifiers / databases
CAS number 13765-26-9 EC number 237-369-4 ECHA InfoCard 100,033,958 Wikidata Q3746859
properties
Molar mass	214.25 g mol −1
Physical state	firmly
density	7.0 g cm −3
Melting point	1231 ° C
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Gadolinium (III) fluoride is a salt of the rare earth metal gadolinium .

Extraction and presentation

Gadolinium (III) fluoride can be obtained by reacting gadolinium (III) oxide with hydrogen fluoride .

${\displaystyle \mathrm {Gd_{2}O_{3}+6\ HF\longrightarrow 2\ GdF_{3}+3\ H_{2}O} }$

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) .

use

Gadolinium (III) fluoride is used to manufacture fluoride glasses.

Individual evidence

1. ↑ ^{a b c} Roger Blachnik (Ed.): Pocket book for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 468 ( limited preview in Google Book search).
2. ↑ ^{a b c d e} data sheet Gadolinium (III) fluoride, anhydrous, powder, 99.99% trace metals basis from Sigma-Aldrich , accessed on September 29, 2013 ( PDF ).
3. ^ Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . Taylor & Francis US, 2011, ISBN 1-4398-1462-7 , pp. 492 ( limited preview in Google Book search).
4. ↑ Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 254.