Modified titration of potassium.

Modified titration of potassium.
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DOI:
10.1016/0039-9140(66)80255-2
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发表时间:
1966-12
期刊:
影响因子:
6.1
通讯作者:
T. Iwachido
T. Iwachido
中科院分区:
化学1区
文献类型:
--
作者:
T. Iwachido

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提出了一种简化的钾滴定法。在通常的方法中,钾由四苯基硼酸钠沉淀,多余的试剂用季铵盐反滴定,但必须除去沉淀,以防止沉淀与滴定剂之间的反应。聚乙烯吡咯烷酮可用于使沉淀失活,使其不需要去除。
A simplified titrimetric method for potassium is proposed. In the usual method, potassium is precipitated by sodium tetraphenylborate and the excess of the reagent is back-titrated with a quaternary ammonium salt, but the precipitate must be removed to prevent the reaction between the precipitate and the titrant. Polyvinylpyrrolidone can be used to deactivate the precipitate so that it need not be removed.