scholarly journals Polarographic investigation of reduction processes of gallium(III) complexes with some o,o'-dihydroxysubstituted azo dyes

2009 ◽  
Vol 2 (3/4) ◽  
pp. 194-201 ◽  
Author(s):  
Solomiya PYSAREVSKA ◽  
◽  
Liliya DUBENSKA ◽  
Nataliya SHAJNOGA ◽  
Halyna LEVYTSKA ◽  
...  
Keyword(s):  
Azo Dyes ◽  
Reduction Processes ◽  
Polarographic Investigation

Synthesis and Characterization of Some New Esters Containing Heterocyclic and Derived From Azo Dyes

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Zena G. Alrecabi ◽  
Zainab Amer ◽  
Naeemah Al-Lami
Keyword(s):  
Schiff Base ◽  
13C Nmr ◽  
Azo Dyes ◽  
Spectral Methods ◽  
Anthranilic Acid ◽  
Heterocyclic Compounds ◽  
Synthesis And Characterization ◽  
Cooh Group ◽  
Molecular Weights

This study including prepared new colored esters containing heterocyclic with high molecular weights. In the first part of work we synthesized azo dyes [1,2] from the reaction p-toluidine with β-naphthol and o-nitro phenol, thin we synthesized Schiff bases [3,4] by the reaction anthranilic acid with benzaldehyde and dimethyl benzaldehyde. The reaction azo dyes (contain OH group) with Schiff base (contain COOH group) these led to produce the new colored esters [A1-A4]. The second part of work was modification the (C=N-) group in esters to heterocyclic compounds by reacting with phenyl iso cyanide to produce new β-lactam [B1-B4] and with anthranilic acid to get new hydroquinazoline [C1-C4]. All these compounds were characterized by physical properties and spectral methods FTIR, 1H-NMR and 13C-NMR.

Microbial Fuel Cell Coupled Bio-oxidation of Reducing Sulfide with Degradation of Azo Dyes

2012 ◽  
Vol 18 (6) ◽  
pp. 978
Author(s):  
Yang CUI ◽  
Wentao SU ◽  
Ping GAO ◽  
Daping LI
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Azo Dyes

Synthesis of Nitroso-Based Bis-Azo Dyes And Their Dyeing Properties For Polyethylene Terephthalate And Polyamide

2020 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Asiagwu Augustine ◽  
johnson otutu
Keyword(s):  
Polyethylene Terephthalate ◽  
Azo Dyes ◽  
Dyeing Properties

Use of a sequencing batch biofilter for degradation of azo dyes (acids and bases)

2000 ◽  
Vol 42 (5-6) ◽  
pp. 329-336 ◽  
Author(s):  
M. Quezada ◽  
I. Linares ◽  
G. Buitrón
Keyword(s):  
Azo Dyes ◽  
Azo Dye ◽  
Degradation Rate ◽  
Removal Rate ◽  
Textile Effluent ◽  
Colour Removal ◽  
Substrate Degradation ◽  
Acids And Bases ◽  
Removal Efficiencies ◽  
Basic Red 46

The degradation of azo dyes in an aerobic biofilter operated in an SBR system was studied. The azo dyes studied were Acid Red 151 and a textile effluent containing basic dyes (Basic Blue 41, Basic Red 46 and 16 and Basic Yellow 28 and 19). In the case of Acid Red 151 a maximal substrate degradation rate of 288 mg AR 151/lliquid·d was obtained and degradation efficiencies were between 60 and 99%. Mineralization studies showed that 73% (as carbon) of the initial azo dye was transformed to CO2 by the consortia. The textile effluent was efficiently biodegraded by the reactor. A maximal removal rate of 2.3 kg COD/lliquid·d was obtained with removal efficiencies (as COD) varying from 76 to 97%. In all the cycles the system presented 80% of colour removal.

Inhibitory effects of the Food Azo Dyes on Pig Liver Carboxylesterase Activity

2015 ◽  
Vol 11 (2) ◽  
pp. 147-152
Author(s):  
Wafaa Lemerini ◽  
Zoheir Arrar ◽  
Kajima Joseph ◽  
Zoheir Dahmani ◽  
Wassila Drici ◽  
...  
Keyword(s):  
Azo Dyes ◽  
Inhibitory Effects ◽  
Pig Liver

Ion-Associates of N,N-Diethyllysergamide with Some Sulfophthaleins and Azo Dyes

1994 ◽  
Vol 59 (3) ◽  
pp. 575-581 ◽  
Author(s):  
Zdeněk Skaličan ◽  
Zbyněk Kobliha ◽  
Emil Halámek
Keyword(s):  
Azo Dyes ◽  
Limits Of Detection ◽  
Extraction Constants ◽  
Cresol Red ◽  
Extraction Spectrophotometry

Ion-associates of N,N-diethyllysergamide with the sulfophthaleins: Bromoxylenol Blue, Eriochrome Cyanine R, Xylenol Blue, and Cresol Red, and the azo dyes: Acid Black I and Orange-I were studied by extraction spectrophotometry. The extraction recoveries, distribution ratios, conditional extraction constants and limits of detection and determination were calculated.

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