Solvent Extraction of Alkaline Earths with 1-Phenyl -3-Methyl 4 Stearoylpyrazol - 5 - One and Topo
作者:
S. Iwasaki,
S. Umetani,
K. Sasayama,
M. Matsui,
期刊:
Analytical Letters
(Taylor Available online 1982)
卷期:
Volume 15,
issue 14
页码: 1159-1167
ISSN:0003-2719
年代: 1982
DOI:10.1080/00032718208064430
出版商: Taylor & Francis Group
关键词: solvent extraction;alkaline earths;1-pheny1 - 3- methyl - 4 - stearoylpyrazol - 5 - one;TOPO
数据来源: Taylor
摘要:
The synergic extraction of Ca, Sr, and Ba ions from aqueous solutions into cyclohexane or benzene containing 1- pheny 1 - 3 - methyl - 4 - stearoylpyrazol - 5 - one (HPMSP) and TOPO has been studied. Quantitative extraction (log D>2) was attained at pH>5.4 for Ca, pH>6.5 for Sr, and pH>7.3 for Ba when cyclohexane containing 0.05 M HPMSP and 0.01 M TOPO was used, and the corresoponding values for benzene were 6.5, 7.8, and 8.4. Extracted species were M(PMSP)2(TOPO)3(M=Ca, Sr, Ba) for cyclohexane and Ca(PMSP)2(TOPO)3and Sr (or Ba) (PMSP)2(TOPO)2for benzene.
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