Претраживање
Приказ резултата 1-10 од 1821
Comparative analysis of ionization constants determination using spectrophotometry and potentiometry: 3-aminobenzoic acid, 1,3,5-benzenetricarboxylic acid and tyrosine
(Belgrade : Serbian Chemical SocietyBelgrade : Serbian Young Chemists’ Club, 2022)
The ionization constant (usually expressed in logarithmic form, pKa) is important physicochemical parameter which is used to characterize the acid-base chemistry of a compound. Since most drugs contain one or more ionizable ...
The effect of methanesulfonic and glutaric acids on the solubility of clofazimine
(Belgrade : Serbian Chemical SocietyBelgrade : Serbian Young Chemists’ Club, 2022)
In the modern drug research the number of practically insoluble potential drugs is increasing. Poor aqueous solubility can cause poor oral absorption and low bioavailability of drugs. Hence, solubility enhancement is ...
Degradation herbicides with chlorine dioxide: degradation efficiency and toxicity test
(University of Belgrade, Technical Faculty in Bor, 2017)
The main objective of this study was to find optimal parameters for degradation of herbicides, such
as nicosulfuron and thifensulfuron-methyl, with chlorine dioxide in deionized water. In order to examine the optimal ...
Corrosion characteristics of laser-cleaned surfaces on the iron artefact
(The Serbian Society of Corrosion and Materials Protection, 2019)
Nd:YAG laser was used for cleaning surfaces of cultural heritage iron artefacts covered with corrosion products. The corrosion products were removed without damaging the base material. Three different electrochemical ...
Corrosion characteristics of laser cleaned brass surfaces
(The Military Technical Institute Belgrade, 2018)
Different types of weapons and military equipment, made of brass, are often exposed to extreme atmospheric conditions, to chemical agents, erosion and wear. It is important to evaluate the corrosion characteristics of brass ...
Laser cleaning of corrosion, efficient and environmentally friendly method
(University of Belgrade, Technical Faculty in Bor, 2019)
In recent years, lasers have been used more and more in different areas of human life, science, industry, medicine, military, agriculture, and show business, protection of environmental and culturalheritage objects, in the ...
Are sustainability and sustainable chemistry on the edge?
(American Chemical Society, 2022)
The world was hit almost simultaneously by two unplanned for catastrophes: the COVID-19
pandemic and the war in Ukraine. Almost overnight everything has stopped (pandemic) and the world has rapidly accelerated (war). In ...
Sorption and Biosorption of Petroleum Pollutants from Water Samples Using Biochar, Hydrocarbon Degrading Microorganisms and Their Combination
(Association of Chemistry and the EnvironmentUniverza v Ljubljani, Zdravstvena fakulteta, 2022)
Petroleum pollutants and organic waste are both important environmental issues. Biochar is a highly complex and heterogenous material consisting of both organic and inorganic compounds obtained by thermal degradation of ...
Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion
(Faculty of Technology Zvornik – University of East Sarajevo, 2021)
In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are ...
Polyurethane/ferrite nanocomposites: preparation and physical properties
(Society of Physical Chemists of Serbia, 2018)
In the present study, polyurethane/ferrite composites (PU-NFs) were prepared using silver ferrite, copper ferrite and zinc ferrite (1 wt.%) by in situ two-step polymerization in solution. PU-NFs based on poly(dimethylsiloxane) ...