Project Details Solubility data related to industrial processes. Rare earth metal chlorides (Sc, Y, lanthanoids) in water and aqueous systems

Project No.:
Start Date:
01 August 2005
End Date:
31 December 2009
Division Name:
Analytical Chemistry Division
Division No.:


This project includes compilations and critical evaluations forthe solubility of rare earth metal (Sc, Y, La and all Ln) chloridesin water and aqueous systems. This report supplements the previous elaboration[1]dealing with rare earth metal chlorides innon-aqueous solvents.

[1] T. Mioduski & M. Salomon, IUPAC Solubility DataSeries; Sc, Y, La and Ln Halides in Non-aqueous Solvents, Vol. 22, Pergamon,Oxford, 1985.


A complete set of compilations will be prepared for the solubilities of all rare earth metal chlorides in water, aqueous solutions of hydrochloric acid, salts and organic compounds. The set of compilations related to a selected metal will be introduced with a critical evaluation of all related results, a schema of partial phase diagram of the binary LnCl3-H2O system and a selection of suggested solubility data. Only simple salts of type LnCl3 (hydrates but no complexes of Ln), used as input substances, are treated in this report.

Rare earth metal chlorides are very important substances used to production of inorganic compounds and alloys as well as as catalysts in various organic syntheses. The systems to be covered by this project fit within the priority focus area identified in the phantom proposal, Solubility Related to Industrial Processes.


> July 2007 report update (pdf file – 6KB)

> October 2008 report update (pdf file – 18KB)

The 3 parts of this project have been published as IUPAC-NIST Solubility Data Series 87 – Rare Earth Metal Chlorides in Water and Aqueous Systems

Part 1. Scandium Group (Sc, Y, La)
J. Phys. Chem. Ref. Data 37, 1765 (2008)
> on-line abstract – doi:10.1063/1.2956740

Part 2. Light Lanthanides (Ce–Eu)
J. Phys. Chem. Ref. Data 38, 441 (2009)
> on-line abstract – doi:10.1063/1.3112775

Part 3. Heavy Lanthanides (Gd–Lu)
J. Phys. Chem. Ref. Data 38, 925 (2009)
> on-line abstract – doi:10.1063/1.3212962

Project completed

>View SDS published Volumes