نتایج جستجو برای: oxidizing agent

تعداد نتایج: 261916  

Journal: :Chimia 2021

What is the strongest Brønsted acid, base, oxidizing agent? If not understood in an absolute, once-and-forever sense, answers to such questions may help at extending and reinforcing meaning of simple concepts first-year chemistry courses. Moreover, they serve purpose introducing research aspects linking them general chemistry.

Azar Bagheri Gh Mahnaz Bagheri

  Abstract: Spectrophotometric studies were successfully used in quantitative analysis of Amitriptyline Hydrochloride (ATH) Two new methods using spectrophotometry are described for the determination of (ATH) with potassium bromate as the oxidizing agent and acid dyes, Methyl orange and Indigo carmine. Both spectrophotometric methods are based o...

2011
MARCELA ACHIM LAURIAN VLASE IOAN TOMUŢĂ DANA MUNTEAN CRISTINA IUGA RADU GEORGESCU SORIN LEUCUŢA

Preformulation studies regarding a physico-chemical evaluation of memantine, a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist, are presented in this work. This characterization of memantine is pre-required for the formulation of a parenteral solution. The water solubility, the thermal behavior and the chemical stability in aqueous solution, depending on the pH, temperature, UV ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2002
Hiroshi Shiigi Masayoshi Kishimoto Hidetaka Yakabe Bhavana Deore Tsutomu Nagaoka

A convenient "one step" preparation process of molecularly imprinted overoxidized-polypyrrole (oPPy) colloids by chemical polymerization and their high uptake ability and enantioselectivity are described. Since an oxidizing agent gives a different standard redox potential and rate of polymerization, the property of the resulting oPPy colloid can be controlled by the kind and concentration of th...

M. Yari S. Sedaghat

Metal—Polyaniline nanocomposites such as Platinum-Polyaniline nanocomposite is prepared by insitu oxidative polymerization of aniline and reduction of Pt+4 ions into Pt nanoparticles. Thepolymerization of aniline was carried out in the presence of 1(2PtCN6 [Potassium Hexa CyanoPlatinate (IV)] as oxidizing agent. During the reaction aniline monomers undergo oxidation andform polyaniline (PANT) w...

Journal: :journal of physical & theoretical chemistry 2009
m. yari s. sedaghat

metal—polyaniline nanocomposites such as platinum-polyaniline nanocomposite is prepared by insitu oxidative polymerization of aniline and reduction of pt+4 ions into pt nanoparticles. thepolymerization of aniline was carried out in the presence of 1(2ptcn6 [potassium hexa cyanoplatinate (iv)] as oxidizing agent. during the reaction aniline monomers undergo oxidation andform polyaniline (pant) w...

Journal: :Environmental Research 2021

In this paper, the fabrication of ZnO tetrapod was investigated. It synthesized by thermal oxidation technique using metal zinc powder mixed with oxidizing agents such as hydrogen peroxide (H2O2) and ammonium persulfate ((NH4)2S2O8). The furnace heating temperature reached at 1000 °C in air. average diameter length a leg for mixture H2O2 from SEM were 45.3 nm 1.57 μm, respectively. oxygen vacan...

Journal: :Molbank 2022

In this work, the direct C-H functionalization reaction of 1,4-dimethoxybenzene with N-hydroxyphthalimide has been disclosed. A previously unknown product C-O coupling and was obtained. The proceeded under mild conditions, in which a commercially available manganese-based oxidizing agent used for generation phthalimide-N-oxyl radical. obtained compound is promising valuable precursor O-aryl hyd...

Journal: :Environments 2023

Water treatment, such as disinfection, is an integral stage of its use for human life. The plasma technology with high-voltage electric discharge in a liquid obtaining bactericidal effect discussed. It has been experimentally shown that among the factors accompanying and affecting viability bacteria, cavitation main one. Simultaneous special mode oxidizing agents makes it possible to achieve st...

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