Solochrome Green V as a new analytical reagent |
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| Authors: | A M Amin H Khalifa and A S Moustafa |
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| Institution: | (1) The National Research Centre, Dokki, Cairo, Egypt, U. A. R. |
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| Abstract: | Summary The acid-base properties of Solochrome Green V have been studied with the object of testing its use as a metal indicator or colorimetric reagent. The pK values of the three steps of ionisation of the free acid were evaluated. The dye has proved to be a suitable indicator in EDTA titrations of zinc and manganese as well as a colorimetric reagent for the microdetermination of zinc. The method is highly sensitive that by its application 0.05 ppm Zn can be determined with fair accuracy. |
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