Neodymium tungstate

Neodymium tungstate  Names

Other names

Neodymium(III) wolframate
Neodymi(III) tungstate
Neodymium wolframate

Identifiers

CAS Number

* 14014-27-8

3D model (JSmol)

* Interactive image

EC Number |

* 237-828-9

PubChem CID

* 44148797

InChI

* InChI=1S/2Nd.12O.3W/q2*+3;12*-2;;;

Key: GXEGJIVZLXITCF-UHFFFAOYSA-N

SMILES

* [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Nd+3].[Nd+3].[W].[W].[W]

Properties

Chemical formula

| 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)

Solubility in water

| 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

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* Reacting neodymium(III) oxide and tungsten(VI) oxide would produce anhydrous neodymium tungstate:

Failed to parse (syntax error): {\displaystyle \ce{Nd2O3 \ + \ 3WO3 ->[{}\atop\ce{1000^\circ C}] Nd2(WO4)3}}

* The nonahydrate could be produced by the reaction of sodium tungstate and neodymium(III) nitrate:

3NaA2WOA4 + 2Nd(NOA3)A3⟶NdA2(WOA4)A3⋅9HA2O(v)+6NaNOA3

## 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. ↑ 1.0 1.1 Villars, Pierre; Cenzual, Karin; Gladyshevskii, Roman (2017-07-24) (in en). Handbook. Walter de Gruyter GmbH & Co KG. ISBN 978-3-11-043655-6. https://books.google.com/books?id=ycw0DwAAQBAJ&pg=PT2514.
2. ↑ Ternary Compounds, Organic Semiconductors. 41E. Landolt-Börnstein. 2000. pp. 1–5. ISBN 978-3-540-66781-0.

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Neodymium compounds

* NdAl3(BO3)4
* NdBr3
* NdCl3
* NdF3
* Nd(OH)3
* NdNiO3
* NdN
* Nd(NO3)3
* Nd2O3
* Nd2(SO4)3

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