Spectrophotometric Determination of Cerium(IV) in Aqueous Medium with 4-Sulpho-2-aminobenzenethiol and Its Studies
| Main Author: | ANIL K. CHAKRABARTI |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1985
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6321966 |
Daftar Isi:
- Department of Chemistry, Jadavpur University, Calcutta-700 032 Manuscript received 29 September 1982, revised 12 March 1985, accepted 31 July 1982 A simple, sensitive and selective spectrophotometric method of determination of cerium(IV) complex with a new thiol reagent has been reported here. The blue-violet complex is formed at 0.4-2.88 M hydrochloric acid absorbs maximum at 560 nm, and it is stable for 3 h. Beer's law is obeyed from 0.4 to 18 ppm of CeIV . The molar absorptivity and Sandell's sensitivity values are 8.06 x 103 dm3 mol-1 cm-1 and 0.0172 μg cm-2 CeIV, respectively at 560 nm. A fifty-fold excess of ZrIV, ThIV, TiIV, MoVI, WVI, Uv MnII,ZnII, PbII CrIII CdII NiII CoII and CuII, and seventeen anions do not interfere in the determination. The cerium(IV)-thiol composition determined by photometric method is found to be 1 : 2.