Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/33123| Title: | Complex Formation in Dye-Carrier-Dispersant Systems |
| Authors: | Guha, Satya B Straw, William A |
| Issue Date: | Sep-1982 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Interactions occurring in dye-carrier-dispersant systems have been studied, Two purified dyes, C.I. Disperse Orange 7 (CI 11240) and C.I. Disperse Yellow 60 (CI 12712); three carriers, 4-hydroxybiphenyl, 2-hydroxybiphenyl and benzoic acid; and non-ionic surface active agents have been incorporated in model systems. It is concluded that in aqueous media, spectral changes in UV visible range occur and these are pH dependent. Further changes in the presence of carrier are characterized by the appearance of isobestic points and spectral shifts of λmax. Additional indication of complex formation between the disperse dye and the carrier is revealed by the changes in physical properties, such as elevation of mixed melting point. This effect could be attributed to the presence of relatively high-energy bonding forces within the crystalline matrix. |
| Page(s): | 69-72 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.07(3) [September 1982] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 7(3) 69-72.pdf | 719.24 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.