Français
2. Rare earths
2.1 Definition
Strictly speaking, the lanthanides are a group of elements made up of the lanthanoids (the elements in the first row of block f), to which lanthanum is added. If we add yttrium and scandium, which are reputed to have similar chemical properties, we obtain the rare earth family (figure 1 ). In practice, the term lanthanide is rarely used
The Ultimate Scientific and Technical Reference
This article is included in
Optics and photonics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Rare earths
Optical properties of rare-earth complexes
Bibliography
- (1) - - https://www.alternatives-economiques.fr/pierre-jacquemot/afrique-medicaments-tuent/00091581
- (2) - WERNER (A.) - Beitrag zur Konstitution anorganischer...
Standards and norms
- Chemical analysis of magnesium and its alloys – Rare earth assay – Gravimetric method. - ISO 2355 - 1972
Regulations
Law no. 2020-105 of February 10, 2020 on the fight against waste and the circular economy. Journal Officiel de la République Française, February 11, 2020.
Commission Regulation (EU) 2022/1616 of September 15, 2022 on recycled plastic materials and articles intended to come into contact with foodstuffs and repealing Regulation (EC) No 282/2008. Official Journal of the European Union, L. 243/3....
Patents
Cerium electrolytic oxidation process and electrolysis unit for its implementation CA2582058.
Method of marking a material comprising at least one mineral matrix and corresponding material FR2906393.
Method of marking materials based on thermoplastic or thermosetting organic polymeric matrices FR2917226
Powder formed from core-shell particles comprising...
The Ultimate Scientific and Technical Reference
