| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 178135 | Dyes and Pigments | 2008 | 6 Pages |
Abstract
5-Amino-4-arylazo-3-methyl-1H-pyrazoles were diazotised and coupled with barbituric acid to provide 13 novel heterocyclic disazo barbituric acid dyes that were characterized by elemental analysis and spectral methods. The effects of varying the pH and solvent on the absorption of the dyes substituted with electron-withdrawing and electron-donating groups at their o-, m-, p-position were examined in detail.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Fati Karcı, Fikret Karcı,