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http://nopr.niscpr.res.in/handle/123456789/40822| Title: | Extractive spectrophotometric determination of vanadium(V) using 2-(2-furyl)- 3-hydroxy-4 H -chromen-4-one |
| Authors: | Ghai, N Dass, R Mehta, J R |
| Issue Date: | May-1997 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Vanadium(V) forms a 1: 2 yellow complex with 2-(2-fury1)-3-hydroxy-4H-chromen-4-one in aqueous medium at 0.08-0.12 M CH3COOH. The complex is extracted into chloroform and absorbs maximally at 410 nm, The absorbance remains constant for more than 18 h with molar absorptivity of 2.24 x 104 1 mol-1 cm-1. Beer's law is obeyed over the concentration range 0-4 m.g V ml-1. Sn(II), Mo(VI), ascorbic acid, oxalate and disodium EDTA interfere seriously. The method has been applied for the estimation of V(V)in high speed steel and reverberatory flue dust. |
| Page(s): | 457-458 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.36A(05) [May 1997] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 36A(5) 457-458.pdf | 96.82 kB | Adobe PDF | View/Open |
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