Azo dyes are the most important synthetic colourants which have been widely used in textile, paper manufacturing and printing. A novel disazo dye, 4-Bromophenylazo-2-naphtholazo-41-chlorobenzene was synthesized and characterized using UV-Visible, FTIR spectrophotometric and elemental analytical tools. The result of the elemental analysis was found to be in conformity with the molecular formular of the dye. The UV-Visible spectra indicated that the dye absorbed at visible region of 479.0 nm, characteristics of intensely coloured dyes. The FTIR spectral study showed absorption bands conforming to the various functional groups in the dye. The colour imparted by the dye on the tested fibres using Gray Scale for colour change, indicated excellent lightfastness, excellent heatfastness, and poor washfastness except nylon which showed fair washfastness. The toxicological testing indicated that the dye has no effect on the DNA of E.coli, and A.niger but at high concentration, it denatured human DNA. The dye does not have adverse effect on the growth of zea mays used for growth profile evaluation. Microbial toxicity of the synthesized dye on E.coli, A.niger and Bacillus cereus showed that all the strains are moderately resistant to the dye.
Dye, 4-Bromoaniline, environment, fastness, toxicology, DNA.
International Journal of Trend in Scientific Research and Development - IJTSRD having
online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International
Journal which provides rapid publication of your research articles and aims to promote
the theory and practice along with knowledge sharing between researchers, developers,
engineers, students, and practitioners working in and around the world in many areas
like Sciences, Technology, Innovation, Engineering, Agriculture, Management and
many more and it is recommended by all Universities, review articles and short communications
in all subjects. IJTSRD running an International Journal who are proving quality
publication of peer reviewed and refereed international journals from diverse fields
that emphasizes new research, development and their applications. IJTSRD provides
an online access to exchange your research work, technical notes & surveying results
among professionals throughout the world in e-journals. IJTSRD is a fastest growing
and dynamic professional organization. The aim of this organization is to provide
access not only to world class research resources, but through its professionals
aim to bring in a significant transformation in the real of open access journals
and online publishing.