Dysprosium (III) chloride

Crystal structure
__ Dy 3+      __ Cl -
Space group	C 2 / m (No. 12)
General
Surname	Dysprosium (III) chloride
other names	Dysprosium trichloride
Ratio formula	DyCl 3
Brief description	yellowish white scales light yellow crystals (hexahydrate)
External identifiers / databases
CAS number 10025-74-8 15059-52-6 (hexahydrate) PubChem 66207 Wikidata Q410654
properties
Molar mass	268.86 g mol −1
Physical state	firmly
density	3.67 g cm −3  (25 ° C)
Melting point	680 ° C 162 ° C (hexahydrate)
boiling point	1530 ° C
solubility	soluble in water
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
Toxicological data	5,443 mg kg −1 ( LD 50 ,  mouse ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Dysprosium (III) chloride is a chemical compound from the group of chlorides .

Extraction and presentation

Dysprosium (III) chloride can be synthesized directly from the elements dysprosium and chlorine .

${\displaystyle \mathrm {2\ Dy+3\ Cl_{2}\longrightarrow 2\ DyCl_{3}} }$

The hexahydrate can be obtained by reacting dysprosium (III) oxide , dysprosium or dysprosium (III) carbonate with hydrochloric acid .

${\displaystyle \mathrm {Dy_{2}O_{3}+6\ HCl\longrightarrow 2\ DyCl_{3}+3\ H_{2}O} }$

${\displaystyle \mathrm {2\ Dy+6\ HCl\longrightarrow \ 2\ DyCl_{3}+3\ H_{2}} }$

${\displaystyle \mathrm {Dy_{2}(CO_{3})_{3}+6\ HCl\longrightarrow 2\ DyCl_{3}+3\ CO_{2}+3\ H_{2}O} }$

properties

Dysprosium (III) chloride hexahydrate

Dysprosium (III) chloride is present as yellowish-white, mother-of-pearl-like, shiny scales. It has a monoclinic crystal structure with the space group C 2 / m (space group no.12) corresponding to that of aluminum (III) chloride with the lattice parameters a  = 691 pm, b  = 1197 pm, c  = 640 pm, β = 111, 28 ° and Z = 2. The hexahydrate is a light yellow solid.

use

Dysprosium (III) chloride can be used as a catalyst in organic syntheses.

literature

• Tomasz Mioduskia, Cezary Gumińskib, Dewen Zengc: IUPAC-NIST Solubility Data Series. 87. Rare Earth Metal Chlorides in Water and Aqueous Systems. Part 3. Heavy Lanthanides (Gd – Lu) . In: Journal of Physical and Chemical Reference Data . tape 38 , no. 4 , 2009, p. 925-1011 , doi : 10.1063 / 1.3212962 .

Individual evidence

1. ↑ ^{a b c d e} Jean D'Ans, Ellen Lax: Paperback for chemists and physicists . 2007, ISBN 978-3-540-60035-0 , pp. 442 ( limited preview in Google Book search).
2. ↑ ^{a b c} data sheet Dysprosium (III) chloride hexahydrate, 99.9% trace metals basis from Sigma-Aldrich , accessed on April 29, 2012 ( PDF ).
3. ↑ ^{a b c d e f} data sheet Dysprosium (III) chloride, anhydrous, powder, 99.99% trace metals basis from Sigma-Aldrich , accessed on April 29, 2012 ( PDF ).
4. ↑ Web elements: Dysprosium
5. ↑ S. Cahen, R. Vangelisti: Synthesis, structure and magnetic properties of lanthanide trichlorides-GIC: Stage-2 DyCl3-GIC. In: Journal of Physics and Chemistry of Solids . 67, No. 5-6, 2006, pp. 1223-1227, doi: 10.1016 / j.jpcs.2006.01.094 .
6. ↑ Gesine K. Veits, Javier Read de Alaniz: Dysprosium (III) catalysis in organic synthesis. In: Tetrahedron . 68, No. 8, 2012, pp. 2015–2026, doi: 10.1016 / j.tet.2011.11.042 .