French
DeutschNeodymium oxychloride
| Names | |
|---|---|
| Other names Neodymium oxide chloride | |
| Identifiers | |
3D model (JSmol) | |
PubChem CID | |
| |
| |
| Properties | |
| NdOCl | |
| Molar mass | 195.69 g/mol |
| Appearance | crystals |
| Structure | |
| tetragonal | |
| 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). | |
Neodymium oxychloride or neodymium oxide chloride is an inorganic compound of neodymium, oxygen, and chlorine with the chemical formula NdOCl.[1]
Synthesis
[edit]NdOCl can be synthesized by reacting neodymium oxide (Nd2O3) and calcium dichloride (CaCl2).[2]
- Nd2O3 + CaCl2 → 2NdOCl + CaO[3]
Physical properties
[edit]The compound forms crystals of tetragonal system, space group P4/nmm.[4][5][6]
It exhibits paramagnetic susceptibility and structural stability.
Chemical properties
[edit]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
[edit]NdOCl has been investigated as a cathode material for the extraction of metallic neodymium.[1]
References
[edit]- ^ a b c Song, Jianxun; Li, Shaolong; Che, Yusi; Fan, Yong; Jiao, Handong; Shu, Yongchun; He, Jilin (1 November 2020). "Synthesis and characterization of neodymium oxychloride". Journal of Materials Research and Technology. 9 (6): 16378–16386. doi:10.1016/j.jmrt.2020.11.035. ISSN 2238-7854. Retrieved 5 July 2025.
- ^ Song, Jianxun; Guo, Muxing; Mukherjee, Abhishek; Blanpain, Bart; Fransaer, Jan (10 December 2017). "Extraction of neodymium by direct reduction of NdOCl in molten calcium chloride". Electrochimica Acta. 257: 465–472. doi:10.1016/j.electacta.2017.10.103. ISSN 0013-4686. Retrieved 5 July 2025.
- ^ Mamantov, Gleb (1987). Proceedings of the Joint International Symposium on Molten Salts. Electrochemical Society. p. 848. Retrieved 5 July 2025.
- ^ Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 603. Retrieved 5 July 2025.
- ^ Report [of] Joint Committee Fellowship [on] Standard X-ray Diffraction Powder Patterns to Joint Committee on Chemical Analysis by Powder Diffraction Methods. United States National Bureau of Standards. 1951. p. 24. Retrieved 5 July 2025.
- ^ National Bureau of Standards Circular. U.S. Department of Commerce, National Bureau of Standards. 1959. p. 37. Retrieved 5 July 2025.
- ^ Krishnamurthy, Nagaiyar (20 December 2004). Extractive Metallurgy of Rare Earths. CRC Press. p. 262. ISBN 978-0-203-41302-9. Retrieved 5 July 2025.