منابع مشابه
Thiophene-Based Azo Dyes and Their Applications in Dyes Chemistry
The thiophene-based azo dyes class of azo dyes have generated considerable interest since its discovery 62 years ago. These dyes have come to be applied to a very large number and variety of fibres and have therefore achieved an importance which is probably greater than the weights used would suggest. The connection between dyeing and fastness properties on the one hand and chemical constitutio...
متن کاملStructure and carcinogenic activity of azo dyes.
In recent years many investigations have been carried out on the carcinogenic activity of several groups of derivatives of 4-aminoazobenzene, their spectra, the relative basicities of their nitrogen atoms, and their metabolism (1, 2, 9, 14). The principal results on the correlation of structure and activity are as follows: Methylation.--3'-Methyl-4-dimethylaminoazobenzene is a tvery potent carc...
متن کاملAzo-dyes and experimental liver tumours.
Introduction Several hundreds of cancer-producing chemical compounds are now known. By far the largest group, which contains all the very potent carcinogens, consists of compounds, mostly polycyclic aromatic hydrocarbons and simple derivatives of these, which give tumours at the site of application. Malignant tumours, resulting from prolonged contact of the tissues with the chemical compound, m...
متن کاملAzo dyes – biological activity and synthetic strategy
Introduction Azo dyes – a fatal threat or a new generation of drugs? In 1858 Griss developed the azo coupling reaction and obtained first azo dye – Aniline Yellow. Nowadays, around 10 thousands of these compounds are described and more than 2 thousands are applied to color various materials. Azo dyes are characterized by the presence of the azo moiety (–N=N–) in their structure, conjugated with...
متن کاملKinetics of anaerobic biodecolourisation of azo dyes.
Kinetics of anaerobic biodecolourisation (methanogenic environment) of four azo dyes (Acid Orange 6, Acid Orange 7, Methyl Orange and Methyl Red) was investigated with regard to their electrochemical properties as well as under variation of dye and sludge concentrations, pH and temperature. Cyclic voltammetry revealed a correlation between the potential of irreversible reduction peak of the dye...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Open Schools Journal for Open Science
سال: 2020
ISSN: 2623-3606
DOI: 10.12681/osj.22600