Ruthenium Chloride Catalyzed Oxidation of Fast Green FCF Dye with 1-Chlorobenzotriazole in HCl Medium: A Spectrophotometric Kinetic and Mechanistic Study

2017 ◽  
Vol 07 (01) ◽  
Author(s):  
Prema Kadappa Reddy ◽  
Fathiya Omar ◽  
Asha Iyengar
2008 ◽  
Vol 5 (3) ◽  
pp. 598-606
Author(s):  
Vandana Sharma ◽  
K. V. Sharma ◽  
V. W. Bhagwat

The kinetics and mechanism of cetyltrimethylammonium bromide catalyzed oxidation of tetraethylene glycol [2,2'-(oxibis(ethylenoxy)diethanol)] byN-chlorosaccharin in aqueous acetic acid medium in presence of perchloric acid have been investigated at 323K. The reaction is first order dependence on Nchlorosaccharin. The reaction rate follows first order kinetics with respect to [tetraethylene glycol] with excess concentration of other reactants. The miceller effect due to cetyltrimethylammonium bromide, a cationic surfactant has been studied. The change in ionic strength shows negligible salt effect. The dielectric effect is found to be positive. Addition of one of the products (saccharin) retards the reaction rate. Activation parameters are calculated from the Arrhenious plot. A possible mechanism consistent with the experimental results has been proposed.


RSC Advances ◽  
2015 ◽  
Vol 5 (85) ◽  
pp. 69371-69377 ◽  
Author(s):  
Dattatray K. Dalavi ◽  
Avinash Kamble ◽  
Dhanaji P. Bhopate ◽  
Prasad G. Mahajan ◽  
Govind B. Kolekar ◽  
...  

The fast green FCF dye adsorbed over the surface of the CTAB stabilized tetracene nanoparticles (TNPs) forms a stable, non-fluorescent ground state complex and quenches fluorescence of nanoparticle sensor.


1986 ◽  
Vol 49 (4) ◽  
pp. 278-279 ◽  
Author(s):  
PHYLLIS ENTIS ◽  
PETER BOLESZCZUK

A hydrophobic grid membrane filter (HGMF) method for aerobic plate count using Tryptic Soy Agar with fast green FCF was evaluated against a conventional pour plate method on 250 food samples, representing 25 product categories. The HGMF method yielded counts equivalent to or significantly higher than the pour plate method for 24 of the 25 product categories (t-test for paired data).


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