Neodymium (III) sulfate

Structural formula
${\displaystyle \mathrm {\ {\Biggl [}} }$ ${\displaystyle \mathrm {\ \!\ {\Biggr ]}_{2}} }$ ${\displaystyle \mathrm {\ {\Biggl [}} }$ ${\displaystyle \mathrm {\ \!\ {\Biggr ]}_{3}} }$
General
Surname	Neodymium (III) sulfate
other names	Neodymium sulfate
Molecular formula	Nd 2 (SO 4 ) 3 Nd 2 (SO 4 ) 3 • 8 H 2 O
Brief description	pink, needle-shaped crystals
External identifiers / databases
CAS number 10101-95-8 13477-91-3 (octahydrate) EC number 233-262-1 ECHA InfoCard 100.030.225 PubChem 165814 Wikidata Q18657647
properties
Molar mass	576.67 g mol −1 720.79 g mol −1 (octahydrate)
Physical state	firmly
density	2.85 g cm −3 (octahydrate)
Melting point	700 ° C (anhydrous, decomp.) 350 ° C (octahydrate, decomp.)
solubility	soluble in water (71 g l −1 at 20 ° C) (anhydrous)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: ?
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Neodymium (III) sulfate (Nd ₂ (SO ₄ ) ₃ ) is a salt of the rare earth metal neodymium with sulfuric acid . As an octahydrate, it forms violet-red crystals.

Neodymium (III) sulfate octahydrate

The anhydrate, the pentahydrate and the octahydrate have a monoclinic crystal structure with the space group C 2 / c (space group no. 15) .

Individual evidence

1. ↑ ^{a b} David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 89th edition. (Internet version: 2009), CRC Press / Taylor and Francis, Boca Raton, FL, Properties of the Elements and Inorganic Compounds, pp. 4-77.
2. ↑ ^{a b c} David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Properties of the Elements and Inorganic Compounds, pp. 4-77.
3. ↑ There is not yet a harmonized classification for this substance . A labeling of Dineodymium trisulphate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on May 23, 2018, is shown, which is derived from a self-classification by the distributor .
4. ↑ External identifiers of or database links to neodymium (III) sulfate octahydrate : CAS number: 13477-91-3, EC number: 625-721-3, ECHA InfoCard: 100.154.189 , PubChem : 25021979 , ChemSpider : 21241399 , Wikidata : Q1977479 .
5. ↑ SP Sirotinkin, V. A Efremov, LM Kovba TO Pokrovskii: The crystal structure of anhydrous neodymium sulfate Nd ₂ (SO ₄ ) ₃ . In: Kristallografiya. Volume 22, 1977, pp. 1272-1273.
6. ↑ Lauri Niinistö: Rare earth sulfates and selenates . In: Annals of the 8th Annual Symposium of the ACIESP . 1984, Report Number ACIESP - 44-1, pp. 43-56 ( iaea.org [PDF]).