Neodymium oxychloride

Neodymium oxychloride or neodymium oxide chloride is an inorganic compound of neodymium, oxygen, and chlorine with the chemical formula NdOCl.^[1]

Neodymium oxychloride

Names
Other names Neodymium oxide chloride
Identifiers
3D model (JSmol)	Interactive image
PubChem CID	172678238
InChI InChI=1S/ClH.Nd.O/h1H;;/q;+3;-2/p-1 Key: AANUWLYYJMIHDX-UHFFFAOYSA-M
SMILES [Nd+3].[O-2].[Cl-]
Properties
Chemical formula	NdOCl
Molar mass	195.69 g/mol
Appearance	crystals
Structure
Crystal structure	tetragonal
Space group	P4/nmm
Related compounds
Related compounds	Praseodymium oxychloride Holmium oxychloride Erbium oxychloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

NdOCl can be synthesized by reacting neodymium oxide (Nd₂O₃) and calcium dichloride (CaCl₂).^[2]

Nd₂O₃ + CaCl₂ → 2NdOCl + CaO^[3]

Physical properties

The compound forms crystals of tetragonal system, space group P4/nmm.^[4][5][6]

It exhibits paramagnetic susceptibility and structural stability.

Chemical properties

NdOCl can be reduced to metallic neodymium through high-temperature electrolysis, specifically within the FFC (Fray-Farthing-Chen) process.^[1]

NdOCl + 1.5Ca → Nd + CaO + 0.5CaCl₂^[7]

Uses

NdOCl has been investigated as a cathode material for the extraction of metallic neodymium.^[1]