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Eriochrome black T (C.I. 14645), p.a., Molar mass (M) 461,38 g/mol, CAS No. 1787-61-7, UN-Nr. 3077, EC No. 217-250-3, Empirical formula C20H12N3NaO7S
| Determination of | Ba Cd In Mg Mn Pb Sc Sr Zn Zr rare earth metals |
| Absorption maximum | 623.5 nm (pH 10) |
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