Regarding the calibration of standard solutions
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Sodium oxalate is used to calibrate potassium permanganate, which is then used to calibrate hydrogen peroxide. What concentration should be used for sodium oxalate and potassium permanganate to achieve the best calibration results? How does the color of the solution change during the first calibration step, and what is the detailed process of this change?
This post was last edited by zjp on 2010-3-14 at 18:48; 0.1 mol/L is the best choice. See GB/T 601-2002
This is basic knowledge for analysis, and it can be found in standard analysis books; you can check it out at: http://bbs.hcbbs.com/viewthread.php?tid=81111&highlight=%B1%EA%D7%BC%C8%DC%D2%BA