Volume-10 ~ Issue-7 ~ July-2017

Abstract: The study was aimed at assessing the levels of some toxic metals in different Lipstick products sold at different shopping malls and markets in Goa Metropolis. The cosmetic items included eighteen lipsticks of various prices. The lipsticks were digested and analyzed for heavy metals ( lead, cadmium and Nickel) using atomic absorption spectrophotometer.It is obvious from the present study that the use of these lipsticks exposes users to low concentrations of toxic heavy metals which could constitute potential health risk to users since they are known to accumulate in biological systems over time. Similarly, regular monitoring of other heavy metals and chemicals used in the manufacture of lipsticks products which may cause health risks to users should be emphasized.

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Abstract: The azo dye namely 4-nitro phenyl azo salicylic acid was synthesized and characterized by IR ,UV and NMR spectroscopy. The monomer was synthesized by the reaction of azo dye namely 4-nitrophenyl azo salicylic acid and methacryloyl chloride in the solvent medium of THF under reflux. Lastly the monomer 2- methacryloyl-1- (4'-nitro-4-azo-1'-phenyl)salicylic acid was co-polymerzed with methylacrylate in the solvent medium of DMF at 110oc. All the monomers and co-polymer were characterized by IR,UV and NMR spectroscopy. The polymer has good photoconducting property.........

Keywords: 4-nitrophenyl azo salicylic acid, 2-methacryloyl-1-(4'-nitro-4-azo-1'-phenyl) salicylic acid, co-polymer, radical polymerization.

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Abstract: The influences of the various preparation parameters (including the pH value, reaction temperature, and holding time) on the phase formation and morphology development were investigated in detail. Graphite was observed on the surface of γ- Bi2MoO6 after the co-precipitation and calcination treatment. The synthesized Bi2MoO6 –Graphite flake composite nanoparticles (NP's) were characterized with X-ray diffraction (XRD) for identify crystalline phases and particle size, Raman spectroscopy is identify active species during the reaction, UV-Visible diffuse reflectance spectroscopy (UV-DRS) revealed for band energy of semiconductors, Field emission scanning electron microscopy(FE-SEM) to determine.............

Keywords: Co-precipitation, Graphite, Photocatalytic degradation, Calcination

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