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Steric Effect of Ortho Substituents of 1‐Phenyl‐3‐methyl‐4‐aroylpyrazol‐5‐ones on the Synergic Extraction of Scandium and Lanthanum with Tri‐ n ‐octylphosphine Oxide

✍ Scribed by Mukai, Hiroshi; Umetani, Shigeo; Matsui, Masakazu


Book ID
120403989
Publisher
Taylor and Francis Group
Year
2003
Tongue
English
Weight
279 KB
Volume
21
Category
Article
ISSN
0736-6299

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Effect of crown ethers on the solvent ex
✍ Maria A. Petrova; Ivan L. Dukov 📂 Article 📅 2008 🏛 Versita 🌐 English ⚖ 313 KB

## Abstract Synergistic solvent extraction of 14 lanthanides with mixtures of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HP) and the crown ethers (S), 18-crown-6, benzo-18-crown-6 or dibenzo-18-crown-6 from an aqueous chloride medium with the constant ionic strength of 0.1 mol dm−3 was investig