ALB's Organic Chemicals Website: www.albtechnology.com
ALB's Magnets Website: www.albmagnets.com

Rare Earth Materials Purity Definition

Tantalum 03/17/2016

Rare Earth Materials Purity Definition

Purities of Rare Earth Metals and Oxides:
In rare earth industry, chemical purities of rare earth metals are often presented on rare earth metal or oxides basis (REM/REO basis), content of a specific rare earth material in comparison to total rare earth metals(TREM) or oxides (TREO) present: REM/TREM and REO/TREO.
The statement of "Sc > 99.9%" often means Sc/TREM > 99.9%. And Sc2O3 > 99.99% (REO) means Sc2O3/TREO > 99.99%.
To obtain its absolute purity of a specific metal, you can use formula: REM/TREM X Percentage of TREM in the material.

Purity examples (same purity for below three):
Sc > 99.9%
Sc > 99.9%(REM)
TREM>99%, Sc/TREM > 99.9%

Part of the content in this article is reproduced from other media for the purpose of transmitting more information and does not mean that this website agrees with its views or confirms the authenticity of its content. It shall not bear direct responsibility and joint liability for the infringement of such works.

If there is any infringement, bad information, error correction, and other issues in the content of this page, please contact us at info@albmaterials.com

Link to this article: https://www.albmaterials.com/knowledge/rare-earth-materials-purity-definition.html