| Names | |
|---|---|
| Other names
Neodymium(III) wolframate Neodymi(III) tungstate Neodymium wolframate | |
| Identifiers | |
3D model (JSmol) |
|
| ECHA InfoCard | 100.034.376 |
| EC Number |
|
PubChem CID |
|
| |
| |
| Properties | |
| Nd2(WO4)3 | |
| Molar mass | 1031,9968 g/mol (anhydrous) 1194,13432 g/mol (nonahydrate) |
| Appearance | light purple crystals[1] |
| Density | 7,02 g/cm3 |
| Melting point | 1,135 °C (2,075 °F; 1,408 K) |
| 21 mg/100 mL (20 °C) 27 mg/100 mL (100 °C) | |
| Related compounds | |
Other anions |
Neodymium chromate Neodymium molybdate |
Other cations |
Praseodymium tungstate Promethium tungstate Samarium tungstate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Neodymium tungstate is an inorganic compound, a salt of neodymium and tungstic acid with the chemical formula Nd2(WO4)3. It forms hydrated light purple crystals[1] that are slightly soluble in water.
Preparation
- Reacting neodymium(III) oxide and tungsten(VI) oxide would produce anhydrous neodymium tungstate:
![{\displaystyle {\ce {Nd2O3\ +\ 3WO3->[{} \atop {\ce {1000^{\circ }C}}]Nd2(WO4)3}}}](../I/444043e709f512c63a2309b57cc840ace71a9885.svg)
- The nonahydrate could be produced by the reaction of sodium tungstate and neodymium(III) nitrate:
Properties
Neodymium tungstate forms the crystal of a monoclinic crystal system, with space group A 2/a, lattice constants a = 1.151 nm, b = 1.159 nm, c = 0.775 nm and β = 109.67 °.[2] It is insoluble in ethanol and acetone and sparingly soluble in water. It forms the nonahydrate Nd2(WO4)3·9H2O.
References
- 1 2 Villars, Pierre; Cenzual, Karin; Gladyshevskii, Roman (2017-07-24). Handbook. Walter de Gruyter GmbH & Co KG. ISBN 978-3-11-043655-6.
- ↑ Ternary Compounds, Organic Semiconductors. Vol. 41E. Landolt-Börnstein. O. Madelung, U. Rössler, M. Schulz. 2000. pp. 1–5. ISBN 978-3-540-66781-0.
{{cite book}}: External link in|ref=
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.