Competitive spectrophotometric study of copper, zinc and cadmium with 18C6 using tar as a colorimetric complexing agent in methanol
Rounaghi, GH; Hosseini, MS; Ghiamati, E
| HERO ID | 1182491 |
|---|---|
| In Press | No |
| Year | 1998 |
| Title | Competitive spectrophotometric study of copper, zinc and cadmium with 18C6 using tar as a colorimetric complexing agent in methanol |
| Authors | Rounaghi, GH; Hosseini, MS; Ghiamati, E |
| Journal | Iranian Journal of Chemistry and Chemical Engineering (International English Edition) |
| Volume | 17 |
| Issue | 1 |
| Page Numbers | 4-7 |
| Abstract | A competitive spectrophotomeric nlc method has been used for the study of complexation between Cu2+, Zn2+ and Cd2+ (M) and 18-crown-6(18 CS, B) in methanol using 4-(2-thiazolylazo) resorcinol (TAR, NL) as the colorimetric complexant. Absorption spectra of the species in the M-TAR-18 Cb system at various concentrations of 18C6 showed no formation of ternary complex; MLB;, aand the stoichiometry of the resulting complexes was found to be 1:1 under the condition used The formation constants of bath types of complexes (ML and MB) were determined using the conditional formation constant of ML complexes at Constant acidity in the absence (K-ML') Land Presence (K-M'L') Of 18C6. The results showed that the K-MB values increased in the order of Cu2+<Zn2+<Cd2+, the K-MB values were comparable with those reported previously. |
| Wosid | WOS:000076671200002 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000076671200002 |
| Is Public | Yes |
| Language Text | English |
| Keyword | 18-crown-6; Cu2+, Zn2+ and Cd2+ ions; methanol; competitive spectrophotometry |
| Is Qa | No |