Yttrium nitrate

Structural formula
No drawing available
General
Surname	Yttrium nitrate
other names	Yttrium (III) nitrate
Molecular formula	Y (NO 3 ) 3
Brief description	white solid whitish odorless solid (hexahydrate) white to reddish solid (tetrahydrate)
External identifiers / databases
CAS number 10361-93-0 13494-98-9 (hexahydrate) 13773-69-8 (tetrahydrate) 57584-28-8 (pentahydrate) PubChem 159283 Wikidata Q3342201
properties
Molar mass	274.92 g mol −1
Physical state	firmly
density	2.68 g cm −3 (tetrahydrate)
Melting point	392 ° C (decomposition)
solubility	soluble in water (1347 g / l at 22 ° C) soluble in ethanol
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 272-315-319-335 P: 221-210-220-305 + 351 + 338-405-501
Toxicological data	3890 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Yttrium nitrate is an inorganic chemical compound of yttrium from the group of nitrates .

Extraction and presentation

Yttrium nitrate can be obtained as a hydrate by reacting yttrium (III) oxide with nitric acid .

${\displaystyle {\ce {Y2O3 + 6 HNO3 -> 2 Y(NO3)3 + 3 H2O}}}$

The anhydrous compound cannot be obtained from the hydrate via thermal drying, as this decomposes into basic salts. Therefore, the anhydrous nitrate is obtained by reacting the oxide with liquid dinitrogen tetroxide :

${\displaystyle {\ce {Y2O3 + (6 + 2x)N2O4 -> 2 Y(NO3)3 * x N2O4 + 3 N2O3}}}$

${\displaystyle {\ce {Y(NO3)3 * x N2O4 -> Y(NO3)3 + x N2O4}}}$

properties

As a hexahydrate, yttrium nitrate is a whitish, odorless solid that is soluble in water. At around 100 ° C it gives off parts of the water of crystallization. The monohydrate has a triclinic crystal structure with space group P 1 (space group no. 2) .

use

Yttrium nitrate is used to produce other chemical compounds, as well as in optics, ceramics, glass and electronics. It is also used in superconducting materials. It is a powerful catalyst for the synthesis of some molecules such as 1,8-dioxooctahydroxanthene, 2-amino-4H-chromene and various other organic condensation products.

Individual evidence

1. ↑ ^{a b c d} William M. Haynes: CRC Handbook of Chemistry and Physics, 97th Edition . CRC Press, 2016, ISBN 978-1-4987-5429-3 , pp. 104 ( limited preview in Google Book search).
2. ↑ ^{a b c d e f g} Data sheet Yttrium (III) nitrate hexahydrate, 99.9% (REO) from AlfaAesar, accessed on April 15, 2018 ( PDF )(JavaScript required) .
3. ↑ ^{a b} Data sheet yttrium (III) nitrate-6-hydrate (PDF) from Merck , accessed on April 16, 2018.
4. ↑ DMA Melo, M. A .F. Melo, AE Martinelli, ZR Silva, JD Cunha, AC Lima: Synthesis and characterization of lanthanum- and yttrium-doped Fe ₂ O ₃ pigments. In: Ceramica. 53, 2007, p. 79, doi : 10.1590 / S0366-69132007000100012 .
5. ↑ Therlad Moeller et al .: Anhydrous lanthanon nitrates . In: Therald Moeller (Ed.): Inorganic Syntheses . tape 5 . McGraw-Hill, Inc., 1957, pp. 37-42 (English).
6. ^ Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 491 ( limited preview in Google Book search).
7. ↑ Structure of yttrium nitrate monohydrate, Acta Cryst. (1990). C46, 525-527, doi: 10.1107 / S0108270189008711 .