✦ LIBER ✦

Synergic extraction of tervalent lanthanoids with 2-thenoyltrifluoroacetone and ethylenediamine as a neutral bidentate ligand

✍ Scribed by Shigeto Nakamura; Nobuo Suzuki

Book ID: 102624585
Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 297 KB
Volume: 270
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(92)80095-o

No coin nor oath required. For personal study only.

✦ Synopsis

The synergic extraction of tervalent lanthanoids [Ln(III)], La, Nd, Tb and Yb, with 2-thenoyltrifluoroacetone (Htta) and ethylenediamine (en) in benzene was investigated. The partition coefficient of en between benzene and aqueous phase was determined as 10 -346. The synergic enhancement was observed at pH > 7.2, and was attributed to the formation of the adduct Ln(tta)3en. The adduct formation constant, /3s,l, increases with increase of atomic number of Ln(III).

📜 SIMILAR VOLUMES

Synergic extraction of rare earths with

Synergic extraction of rare earths with 2-thenoyltrifluoroacetone and phophoryl-type bidentate ligands such as tetraphenyldiphosphine dioxide or bis(diphenylphosphinyl) methane

✍ Saeko Satake; Satoshi Tsukahara; Nobuo Suzuki 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 485 KB

The synergic extraction of rare earth(III) ions (RE, La, Sm, Tb and Lu) using 2-thenoyltrifluoroacetone (Httal and phosphoryl-type uncharged bidentate ligands, such as tetraphenyldiphosphme dioxide (tpdpo) or bis(diphenylphosphinyljmethane (bdppm), was investigated in benzene. The synergic enhanceme