6 results for “Hossnia Mohran”

Research ArticleOpen accessIn the author namesAn Electrochemical Investigation of the Redox Properties of Murexide in Aqueous and Non-Aqueous MediaHossnia S. MohranKnowledge of solvent effects on the redox properties of Murexide (Mu) is important for understanding its role as an electron acceptor in analytical and inorganic chemistry. In the present study, an investigation of the electrochemical behavior of the compound by both Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) in both aqueous and non-aqueous solutions was undertaken. It is suggested … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,738 accessesView PDF Cite

Research ArticleOpen accessIn the author namesImpedance Behavior of Some Reactive Systems in Aprotic SolventsHossnia S. MohranAC-Impedance Spectroscopic (IS) measurements in the frequency range 10 Hz ≤ f ≤ 50 kHz for some reactive systems such as diphenylanthracene (DPA), ferrocene and anthraquinone are investigated. The experiments are carried out in pure and dry dichloromethane (CH2Cl2), acetonitrile (CH3CN) and N,N- dimethylformamide (DMF) containing tetrabutylammonium perchlorate (TBAP) as supporting electrolyte. The IS diagrams of these systems are characterized … …American Journal of Applied Sciences, Vol. 2, Issue 12 · 31 Dec 2005 · 6,948 accessesView PDF Cite

Research ArticleOpen accessIn the author namesCyclic Volta Metric Study of Alizarin Yellow R and Some Analogous Arylazo Compounds in DMF and in Aqueous MediaHossnia MohranThe Cyclic Voltammetry (CV) was used to investigate the electrochemical behavior of alizarin yellow R and some analogous arylazo compounds having almost the same central azo group. For this purpose, the substances chosen for the measurements are Alizarin Yellow R (AYR), Eriochrome Black T (EBT) and Sudan II (SUD II). The investigations were carried out at room temperature (298 K) … …American Journal of Applied Sciences, Vol. 2, Issue 12 · 31 Dec 2005 · 7,235 accessesView PDF Cite

Research ArticleOpen accessIn the author namesElectrochemical Characteristics of Some Purpurins in Aqueous and Nonaqueous SolutionsFarouk A. Rashwan, Hossnia S. Mohran, Ahmed A. El-SamahyThe Electrochemical Impedance Technique (EIS) and the Cyclic Voltammetric method (CV) were used to investigate the behavior of purpurin (P), Anthrapurpurin (AP) and Benzopurpurin (BP) in aqueous and in N, N-dimethylformamide (DMF) media. In the CV experiments, both the radical and the dianion of these substances were assumed to form of limited stability due to chemical protonation. In case of … …American Journal of Applied Sciences, Vol. 2, Issue 7 · 31 Jul 2005 · 6,743 accessesView PDF Cite