JPS55154457A - Measuring method of persulfate ion concentration - Google Patents
Measuring method of persulfate ion concentrationInfo
- Publication number
- JPS55154457A JPS55154457A JP6307679A JP6307679A JPS55154457A JP S55154457 A JPS55154457 A JP S55154457A JP 6307679 A JP6307679 A JP 6307679A JP 6307679 A JP6307679 A JP 6307679A JP S55154457 A JPS55154457 A JP S55154457A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- concentration
- copper
- electric current
- insoluble
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
PURPOSE: To measure S2O8 -2 concentration with good accuracy in a short time by measuring the time until the potential difference between a copper electrode and reference electrode or standard electrode shows the point of inflection while flowing fixed electric current between the copper electrode and insoluble electrode in an aqueous alkaline solution of persulfuric acid.
CONSTITUTION: Three kinds of electrodes, a copper electrode, an electrode (platinum or the like) insoluble in the measuring solution and a standard electrode (silver-silver chloride electrode) are dipped in the measuring solution of about 0.01W0.1mol/l in persulfate ion (S2O8 -2) concentration and 0.1W2.5mol/l in alkali (NaOH or the like) concentration. While constant electric current is being flowed between the copper electrode and insoluble electrode, the time showing the point of inflection of the potential difference between the copper electrode and reference electrode or standard electrode is measured from the time when the electric current was begun to flow and the concentration of S2O8 -2 is measured by using the working curve obtained beforehand from the S2O8 -2 of a known concentration.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54063076A JPS608744B2 (en) | 1979-05-21 | 1979-05-21 | How to measure persulfate ion concentration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54063076A JPS608744B2 (en) | 1979-05-21 | 1979-05-21 | How to measure persulfate ion concentration |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55154457A true JPS55154457A (en) | 1980-12-02 |
JPS608744B2 JPS608744B2 (en) | 1985-03-05 |
Family
ID=13218877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54063076A Expired JPS608744B2 (en) | 1979-05-21 | 1979-05-21 | How to measure persulfate ion concentration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS608744B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533440A (en) * | 1983-08-04 | 1985-08-06 | General Electric Company | Method for continuous measurement of the sulfite/sulfate ratio |
DE10056069B4 (en) * | 2000-11-08 | 2004-04-15 | Technische Universität Dresden | Method and device for measuring the concentration of peroxodisulfate |
-
1979
- 1979-05-21 JP JP54063076A patent/JPS608744B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533440A (en) * | 1983-08-04 | 1985-08-06 | General Electric Company | Method for continuous measurement of the sulfite/sulfate ratio |
DE10056069B4 (en) * | 2000-11-08 | 2004-04-15 | Technische Universität Dresden | Method and device for measuring the concentration of peroxodisulfate |
Also Published As
Publication number | Publication date |
---|---|
JPS608744B2 (en) | 1985-03-05 |
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