Comparative Study of the Kinetics of the Benzidine Rearrangement by Four Electrochemical Techniques.

1966 ◽  
Vol 38 (3) ◽  
pp. 385-391 ◽  
Author(s):  
D. M. Oglesby ◽  
J. D. Johnson ◽  
C. N. Reilley
Keyword(s):  
Comparative Study ◽  
Electrochemical Techniques ◽  
Kinetics Of

scholarly journals Comparative Study of Chemical Stability of Two H1Antihistaminic Drugs, Terfenadine and ItsIn VivoMetabolite Fexofenadine, Using LC-UV Methods

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Anna Gumieniczek ◽  
Anna Berecka-Rycerz ◽  
Rafał Pietraś ◽  
Izabela Kozak ◽  
Karolina Lejwoda ◽  
...  
Keyword(s):  
Comparative Study ◽  
Chemical Stability ◽  
First Order ◽  
First Order Kinetics ◽  
Kinetics Of Degradation ◽  
Effects Of Temperature ◽  
High Doses ◽  
Antihistaminic Drugs ◽  
Kinetics Of

A comparative study of chemical stability of terfenadine (TER) and itsin vivometabolite fexofenadine (FEX) was performed. Both TER and FEX were subjected to high temperature at different pH and UV/VIS light at different pH and then quantitatively analyzed using new validated LC-UV methods. These methods were used to monitor the degradation processes and to determine the kinetics of degradation for both the compounds. As far as the effects of temperature and pH were concerned, FEX occurred more sensitive to degradation than TER. As far as the effects of UV/VIS light and pH were concerned, the both drugs were similarly sensitive to high doses of light. Using all stress conditions, the processes of degradation of TER and FEX followed the first-order kinetics. The results obtained for these two antihistaminic drugs could be helpful in developing their new derivatives with higher activity and stability at the same time.

Kinetics of Chemical Changes in Phenol Formaldehyde Based Polymeric Films Etched in N2O and O2Inductively Coupled Plasmas: A Comparative Study

2009 ◽  
Vol 48 (8) ◽  
pp. 08HA02 ◽  
Author(s):  
Kwang-Ho Kwon ◽  
Nam-Ki Min ◽  
Seung-Youl Kang ◽  
Kyu-Ha Baek ◽  
Kyung Soo Suh ◽  
...  
Keyword(s):  
Comparative Study ◽  
Phenol Formaldehyde ◽  
Polymeric Films ◽  
Chemical Changes ◽  
Coupled Plasmas ◽  
Kinetics Of

scholarly journals Chlorine and Chlorinated Compounds Removal from Industrial Wastewater Discharges: A Review

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
Mohammad Al-Hwaiti ◽  
Hamidi Abdul Aziz ◽  
Mohd Azmier Ahmad ◽  
Reyad Al-Shawabkeh
Keyword(s):  
Industrial Wastewater ◽  
Electrochemical Techniques ◽  
Parent Compound ◽  
Water Soluble ◽  
Human Beings ◽  
Catalytic Method ◽  
Chlorinated Compounds ◽  
Water Treatment Process ◽  
Chlorine Removal ◽  
Kinetics Of

Adsorption techniques for industrial wastewater treatment rich in heavy metals and aqueous solutions of water-soluble such as Cl−, F−, HCO3−, NO3−, SO2−4, and PO3−, often include technologies for toxicity removals. The recent advancement and technical applicability in the treatment of chlorine and chlorinated compounds from industrial wastewater are reviewed in this article. Chlorine and chlorinated compounds are among the common discharged constituents from numerous industries. They can be carcinogenic or naturally toxic and can pose issues to aquatic ecosystems and human beings. Thus, elimination of chlorides and chlorinated compounds from water or wastewater is inevitable to get rid of the problem. Several techniques are being applied for the reduction of chlorine and chlorinated compounds in water. These include biodegradation, photochemical, adsorption, chemical, electrochemical, photo-electrochemical, membrane, supercritical extraction and catalytic method. Chlorine can react with various organic and inorganic micro-pollutants. However, the potential reactivity of chlorine for specific compounds is small, and only minor variations in the structure of the parent compound are anticipated in the water treatment process under typical conditions. This paper reviews different techniques and aspects related to chlorine removal, the types of chlorine species in solution and their catalyst, chlorine fate and transport into the environment, electrochemical techniques for de-chlorination of water, kinetics, mechanisms of reduction of chlorinated compounds, and kinetics of the electrochemical reaction of chlorine compounds. Keywords: Industrial waste, Kinetics, Wastewater, Water purification

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