Nine derivatives of sulfonic acid dyes
were synthesized using substituted aryl amines as diazo component and substituted amino hydroxyl sulfonic acid as coupling component.
Thus, many research works have paid increasing attention to the degradation of acid dyes
in the water stream in recent years.
Wool, silk, nylon and protein based natural fibers also have amino group that can bond with acid dyes
, the bond formed between the dye and fiber are salt linkages.
Influence of heavy metals on the biosorption of acid dyes
Among them, acid dyes
are considered to be a logical choice because wool exhibit cationic character owing to the presence of inonizable amino groups as part of the main chain peptide bonds connecting the amino acid units together [6, 7].
The exponential growth of the textile industry in countries such as China, India, Indonesia, Brazil, and Mexico are expected to increase the demand for acid dyes
. Factors like availability of raw materials, cost-effective labor, low logistics cost, and favorable government policies are motivating the global dye vendors to shift their manufacturing units to these countries.
can be brought to a neutral state by adding baking soda before disposal.
Yousef, "Spectrophotometric determination of gemifloxacin mesylate, moxifloxacin hydrochloride, and enrofloxacin in pharmaceutical formulations using acid dyes
," Journal of Analytical Methods in Chemistry, vol.
Orange peel as an adsorbent in the removal of acid violet 17 (acid dye
) from aqueous solutions.
Breakthrough curve for adsorption of acid dye
on crosslinked chitosan fiber.
Acids dyes chromatable added to the gels based on zirconium were synthesized in our laboratory, as follows: acid dye
blue-violet chromatable (C1), acid dye
green chromatable (C2), and acid dye
Bordeaux chromatable (C3).
Sorption of acid dyes
from aqueous solution by using non ground ash and slag.