化学
溶解度
四氢呋喃
溶剂
乙腈
环己烷
丙酮
二异丙醚
氟化物
水溶液
碱金属
二甲基甲酰胺
无机化学
冠醚
乙醚
色谱法
有机化学
离子
作者
David A. Wynn,Marcel Roth,Bruce D. Pollard
出处
期刊:Talanta
[Elsevier]
日期:1984-11-01
卷期号:31 (11): 1036-1040
被引量:83
标识
DOI:10.1016/0039-9140(84)80244-1
摘要
The solubilities of LiF, NaF, KF, RbF and CsF in acetonitrile, acetone, tetrahydrofuran, dimethylformamide, benzene and cyclohexane have been determined with and without a crown ether (usually 0.1 M 18-crown-6) present. Flame emission spectrometry was the determination method. Three procedures, selected according to the miscibility of the solvent with water, and the solubility of the fluoride, are described. Samples, standards and blanks were matrix-matched. The precision varied between 1 and 10% RSD. Although extensive drying procedures were applied, moisture present in the solvents and salts had some effect on the results.
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