| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a quantity determination method of all oxidizing components in electrolysis sulfuric acid capable of preventing leak of all oxidizing components in the electrolysis sulfuric acid used as cleaning liquid. <P>SOLUTION: In the quantity determination method of all oxidizing components in the electrolysis sulfuric acid, the electrolysis sulfuric acid containing oxidizing component produced by electrolyzing the sulphuric acid is used as sample liquid, potassium iodide water solution is added to the sample liquid, it is made to react with the oxidizing component in the sample liquid, coloring by free iodine is performed, titration is performed with sodium thiosulfate solution until the sample liquid becomes transparent, and the whole oxidizing substance concentration in the electrolysis sulfuric acid is calculated based on the titer and sample liquid quantity. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
