The Use of 1-5 Bis(Benzylidine) Thiocarbohydrazone as an Amperometric Reagent for Lead
| Main Authors: | S. C. SHOME, M. MAJUMDAR, A. BASU, P. C. MITRA |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1981
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6375124 |
Daftar Isi:
- Department of Chemistry, Presidency College, Calcutta-700 073 Manuscript received 5 May 1980, revised 5 March 1981, accepted 9 June 1981 Lead has been determined amperometrically at dropping mercury electrode using 1-5 bis (benzylidine) thiocarbohydrazone as complexing agent. The metal amounts varying from 0.202 mg to 5.055 mg in 0.1 to 1.62x 10-2 M solution can be titrated with accuracy in ammoniacal potassium cyanide medium in presence of ammonium citrate in the pH range of 10.0 to 10.5. The determination of lead has been carried out in the presence of commonly associated metal ions such as Cu+2, Zn+2, Cd+2, Ni+2, Co+2, Fe+2, As+2, Sb+2 and Mn+2, Bi+2 and Tl+1, however, interfere. The lead content in a sample of gun-metal and that of a lead ore has been determined amperometrically using the complexing agent as titrant.