Studies on the Analytical Method by Means of Photoelectric Colorimeter. III : Rapid Determination of Total Iron in Basic Slags by Ferron Method
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For the purpose of the rapid colorimetric determination of the total iron in basic slags, several color reactions of iron were examined. The effect of fluoride on these reactions was especially investigated, because the basic slags usually contain fluoride to some extent. It was found that the ferron method was the most suitable for this purpose, although this method was slightly affected by fluoride. Concerning the forron method, fundamental experiments were made to determine the optimum condition for rapid analysis and then an analytical procedure for rapid colorimetry, by which one run of analysis could be carried out for about 9.5 to 10 minutes, was proposed.
- 東北大学の論文
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