Reactions of eriochrome Blue Black R.
1Monsanto Research Corporation, Mound Laboratory,(1) Miamisburg, Ohio, U.S.A.
Talanta
|August 1, 1967
Summary
Eriochrome Blue Black R reacts with 25 metals. New photometric titration methods were developed for molybdenum, uranium, and thulium using ethylenediaminetetraacetic acid (EDTA).
Area of Science:
- Analytical Chemistry
- Inorganic Chemistry
Background:
- Eriochrome Blue Black R is a versatile metallochromic indicator.
- Accurate quantification of metals is crucial in various scientific fields.
Purpose of the Study:
- To tabulate the reactions of Eriochrome Blue Black R with 25 metals.
- To develop and describe new photometric titration methods for specific metal ions.
Main Methods:
- Spectrophotometric analysis was employed.
- Photometric titrations were performed using Eriochrome Blue Black R.
- Ethylenediaminetetraacetic acid (EDTA) was used as a titrant.
Main Results:
- Reactions with approximately 25 metals were systematically recorded.
- Photometric titration procedures for molybdenum and uranium were successfully established.
- A novel titration method for thulium using EDTA was developed and presented.
Conclusions:
- Eriochrome Blue Black R serves as an effective indicator for the titration of numerous metal ions.
- The developed photometric titration methods offer precise quantification of molybdenum, uranium, and thulium.
- This study expands the utility of Eriochrome Blue Black R in quantitative metal analysis.
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