AZO DYES
An Iron Determination Method for Azo Dyes-Contaminated Wastewater
... We have designed an improved iron determination method based on the ability of ferrous iron to reduce 12-molybdophosphate (12-MP). The method allows for direct determination of ferrous iron in the presence of azo ...
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Synthesis and Application of Mordent and Disperse Azo Dyes Based on Amino
... The dyes showed an excellent fastness to light, washing, perspiration and ...of dyes was found fairly ...degrade azo dyes at high concentration gives it an advantage for treatment of textile ...
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Bioremediation of Azo-dyes by indicator fungi
... Czapek Dox liquid medium was prepared, in which red and blue azo-dyes were individually incorporated at different concentrations viz. 100, 200, 300, 400 and 500 ppm. On this fungal isolates were inoculated ...
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Decolourization of Azo-Dyes by Bacterial Consortium
... of azo dyes are aromatic amines which have toxic ...discharged dyes even at very small concentrations has a huge impact on the aquatic environment caused by its turbidity and high pollution strength ...
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SYNTHESIS OF SOME NOVEL HETEROCYCLIC AZO DYES FOR ACRIDINE DERIVATIVES AND EVALUATION OF THEIR ANTIBACTERIAL ACTIVITIES
... heterocyclic dyes were prepared by coupling of various diazo solution of aromatic amines with N-[{4-[2- (5-(4-chlorophenyl)-3-(4-methoxyphenyl)-4,5-dihydro-pyrazol-1-yl)- ...heterocyclic dyes were ...
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Enzymatic treatment of azo-dyes with soybean peroxidase
... of dyes. Dyes can be classified into: azo (mono-azo, di-azo, tri-azo, poly-azo), anthraquinone, triarylrnethane, indigoid, and polycyclic aromatic carbonyl dyes ...
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Comparative Studies of Fungal Degradation of Bioaccessible Reactive Azo Dyes
... The dyes selected for decolourisation studies were procion dyes, which were procured from Atul Dyes Manufacturing Limited, Gujarat, ...procion dyes are usually known as reactive azo ...
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Cyclic Voltammetric Studies of Synthesized Cardanol based Azo Dyes
... ten azo dyes containing cardanol as coupling component were synthesized using classical diazotization coupling reaction with preferable modification in the pH of the coupling reaction at slightly acidic ...
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Microwave Assists the Synthesis of Pyridone azo Dyes and their Application in Polyester Printing
... arylazopyridone dyes, where these dyes synthesized from corresponding dianalides, which coupled with some diazotized aromatic amines to give azodisperse dye which react with cyanoacetamide to form ...
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Clay Mediated One Step Synthesis of Azo Dyes with 1,3 Benzoxazole Moiety
... of azo dyes of 4-(1,3-benzoxazol-2-yl) aniline (2a-j) in the presence of green and cost effective catalyst K10-Montmorillonite clay, using substituted phenols as coupling ...The azo dyes were ...
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Azo dyes decolorization by bacteria originated from textile wastewater
... This research focused on biological decolorization of azo dyes Acid Orange 7 and Reactive Black 5 using individual culture of bacteria (Escherichia sp., Acinetobacter sp. Enterobacter sp. and Klebsiella ...
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Synthesis and Application of Azo Dyes in Supercritical Carbon Dioxide
... form azo dyes in significant ...However, dyes from arylamines containing nitro- and vinylsulfonyl- substituents in the para-position relative to the primary amine could be easily synthesized in SC-CO ...
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Synthesis of Novel Azo Dyes Derived from 8 Hydroxyquinoline
... novel azo dyes derived from the 7-substituted 8-Hydroxyquinoline (8HQ) presented in this work were synthesized by a coupling reaction with 8HQ derivatives using a primary aromatic ...new azo ...
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Disulfonated azo-dyes : metal coordination and ion-pair separation in twelve MII compounds of ponceau xylidine and crystal scarlet
... sulfonated azo dye anions with transition metal cations is less well studied than with s-block metal ...sulfonated azo dyes (Dodds et ...sulfonated azo dye species, especially when the dye ...
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Synthesis and Investigation of Polyester and Poly Amide Azo Dyes (I)
... monomer dyes was carried out by formation of diazinium salt of amine compound to coupled with Ρ- toluidine, aniline to form azo dyes with function (hydroxy and amino) ...
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Synthesis of some novel heterocyclic azo dyes for acridine derivatives and evaluation of their antibacterial activities
... Five new azo dyes for acridine derivatives were synthesized using different approaches depending on the position of functional groups. The synthesis started with a commercially available unsubstituted ...
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Soybean Peroxidase Catalysis in Removal of Anilines and Azo-Dyes from Water
... of dyes goes back to prehistoric times, when natural vegetable extracts and animal products were ...first azo-dye was synthesized and marketed as London Yellow (Bafana et ...of dyes was valued at US ...
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Heterogeneous Fenton Catalyst for the Efficient Removal of Azo Dyes in Water
... resulting azo dye solution due to the concentration of the radiation and on the other hand to the solar radiation that covers a broader range of ultraviolet radiation spectrum than the ...
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Azo dyes based Novel polymeric ligands
... The synthesis of the ligand, azo dye based on salicylic acid-formaldehyde (CP-SA) has not been reported in the literature. The ligand CP-SA was isolated in the form of a pale greenish white powder. It is insoluble ...
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Synthesis, Characterization and Antimicrobial Screening of Azo Compounds containing 4
... of dyes, azo dyes constitutes one of the largest and important class of synthetic organic compounds containing an azo N=N group generally connected to aromatic ...of azo compounds ...
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