Volume-16 ~ Issue-11 ~ November 2023

Abstract: Some new azo acid dyes were prepared by coupling various diazotized acid components such as J- acid, H- acid, G- acid, N-methyl J-acid acid, Chromotropic acid, Gamma acid, C-acid, Bronner acid, Tobias acid, Koch acid, Napthanoic acid, Sulphotobias acid with Ethane-1,1diybis(4,1-phenylene)bis(3-nitrobezenesulfonate). The dyes were characterized by elemental, IR and TLC analyses. Their dyeing performance as acid dyes has been assessed on Wool, silk and nylon fibres.

Key words: Acid azo dyes, Dyeing performance, IR

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Abstract: Uranium, a heavy metal, is a naturally occurring substance that exists in various chemical forms and plays a significant role in environmental radioactivity. It is found in abundance in sources such as granites, metamorphic rocks, lignite, carnotite, monazite sand, phosphate deposits, and uraninite. While uranium is not as common as other toxic elements like antimony, cadmium, bismuth, and mercury, it is present in higher amounts in the Earth's crust. Uranium can enter the environment through leaching from natural sources, nuclear industry emissions, nuclear weapons use, dissolution in fertilizers, and the burning of coal and other fuels. The chemical and radioactive toxicity of uranium can have adverse effects on the kidneys and lungs. Chemical toxicity may be more important than radiological dose for uranium alone. Uranium's mobility is influenced by its chemical.....

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