Extraction of Nickel(II) in Aqueous Thiocyanate—Perchlorate Solutions with Trioctylphosphine Oxide in Hexane and with 4-Methyl-2-pentanone

Autor:	Ryokichi Murai, Shigehisa Iwahori, Tatsuya Sekine
Rok vydání:	1977
Předmět:	inorganic chemicals Aqueous solution Absorption spectroscopy Thiocyanate Inorganic chemistry Extraction (chemistry) chemistry.chemical_element General Chemistry Nickel chemistry.chemical_compound Perchlorate chemistry Cobalt Trioctylphosphine oxide
Zdroj:	Bulletin of the Chemical Society of Japan. 50:1315-1318
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.50.1315
Popis:	The liquid-liquid partition of nickel(II) between hexane containing trioctylphosphine oxide or 4-methyl-2-pentanone and 1 mol dm−3 Na(SCN, ClO4) solutions at 25 °C was measured. The absorption spectra of the organic and aqueous phases at equilibrium were also measured. From an analysis of these data, the extraction constant and absorption spectrum of each organic species were determined. By comparing the extraction and optical absorption of cobalt(II) complexes in the same systems with the above results for nickel(II), it was concluded that cobalt(II) thiocyanate complexes changed from octahedral to tetrahedral form upon extraction, but that nickel(II) thiocyanate complexes remained in octahedral form throughout.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0be9461b140f8ba70463636ea0b3c8e0 https://doi.org/10.1246/bcsj.50.1315 Zobrazit plný text záznamu