Chemistry:Ammonium neodymium nitrate

Ammonium neodymium nitrate

Names
IUPAC name diazanium;neodymium(3+);pentanitrate
Other names Diammonium neodymium nitrate, diammonium neodymium pentanitrate
Identifiers
CAS Number	15653-40-4 Y
3D model (JSmol)	Interactive image tetrahydrate: Interactive image
ChemSpider	21160394
EC Number	239-721-2
PubChem CID	57370190
InChI InChI=1S/5NO3.2H3N.Nd/c5*2-1(3)4;;;/h;;;;;2*1H3;/q5*-1;;;+3/p+2 Key: GHPKFTYZEPZTAF-UHFFFAOYSA-P
SMILES [NH4+].[NH4+].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Nd+3] tetrahydrate: [NH4+].[NH4+].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Nd+3].O.O.O.O
Properties
Chemical formula	H8N7NdO15
Molar mass	490.340 g·mol−1
Appearance	red-violet crystals (hydrate)
Solubility in water	soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Ammonium neodymium nitrate is a chemical compound with the chemical formula Nd(NH
4)
2(NO
3)
5. The compound is classified as a rare earth metal salt, belonging to nitrates.

Synthesis

The compound can be prepared by the reaction of neodymium oxide, nitric acid, and ammonium nitrate.

Also, it can be made by a reaction of neodymium oxide or neodymium carbonate with ammonium nitrate, releasing water as a byproduct:

Nd
2O
3 + 6NH
4NO
3 → 2(NH
4)
2Nd(NO
3)
5 + 3H
2O

Physical properties

Ammonium neodymium nitrate is soluble in water.

The compound forms a tetrahydrate of the composition Nd(NH
4)
2(NO
3)
5 • 4H
2O—red-violet crystals that melt in their own crystallization water at 47 °C.

Chemical properties

The compound reacts with strong acids to form soluble complexes. It can release nitrogen oxides when decomposed.

Uses

Ammonium neodymium nitrate is used as a precursor for the synthesis of many other neodymium compounds and also as a reagent for various chemical reactions.