Chemical element of sodium
Characteristics: chemical properties, compounds, spectroscopy, isotopes. History, commercial production. Applications, biological role: maintaining body fluid volume in animals, maintaining electric potential in animal tissues. Dietary uses, precautions.
Подобные документы
The study of the synthesis and physicochemical properties of derivatives of 4-phenyl-5-(1,2,3-benzotriazolyl 1)-3-merkapto-1,2,4-triazole(4H). Due to computer prognosis data the substances synthesized are prospective anticonvulsants and antiasthmatics.
статья, добавлен 05.03.2014Selection of the composition of a simplex nutrient medium by mathematical modeling. Optimization of the biosynthetic ability of the streptomyces recifensis strain for the synthesis of amylolytic enzymes. Influence of physical and chemical factors on it.
статья, добавлен 12.05.2024Distribution of essential chemical elements and toxicants in terrestrial phytomass of woody plants fir white European, which is a species of forest on the territory of the Dniester region. Estimation of biospheric and stabilize the environment functions.
статья, добавлен 25.12.2016Testing scheme of the synthesis of ester atsalamov acids and subsequent cyclization of the intermediate 3-hydrazinopyridazine-2-ones with carbonyl-containing compounds to provide chemical diversity of the final products containing a practical substitute.
статья, добавлен 20.03.2016The technology of obtaining and comparative tests of the medical enterosorbents, activated coal and lignin enterosorbents. High activity lignin enterosorbents at the treatment of lacto-dependent diarrhoea. Physical-chemical features of enterosorbents.
статья, добавлен 02.04.2014The chemical structure of the polymer latexes. The influence of surfactants on the drip solution. The mechanism of anionic with a negative charge in the screed, acting as air entrainment. Hydrogen bonding, water absorption and compressive strength.
статья, добавлен 22.02.2015The study of physico-chemical properties of modified forms of natural biopolymers – carboxymethyl cellulose and xanthan gums, their ability to film formation water-soluble polymeric compositions and the influence on growth and productivity of crops.
статья, добавлен 23.02.2016- 58. Copper(II) and nickel(II) with N-bis(salicylidene)thiosemicarbazide heterometal complex compounds
Heterometal coordination compounds of copper(II), nickel(II), alkaline-earth metals with N-bis(salicylidene)thiosemicarbazide have been synthesized. Using elemental analysis has been shown that the synthesized compounds have semi-conducting properties.
статья, добавлен 30.08.2016 The use of scanning electron microscopy to study the reactivity of iron in yellow color with different iron concentrations. Substantiation of the possibility of applying the archeometric approach in studies of the chemical corrosion of ancient documents.
статья, добавлен 21.12.2016Changes of structural and power parameters of molecules of Laevomycetinum, conditioned by adsorption. Descriptors of biological activity of Laevomycetinum are energy of НВМО and length sanctify O hydrogen - H.O in the propanediol fragment of molecule.
автореферат, добавлен 02.04.2014The study of the composition and the structure of the original and modified lignocellulosic materials. Analysis of the dependence of sorption properties of lignocellulosic composites in relation to heavy metals from changes in the functional composition.
статья, добавлен 04.04.2014Study matter and change and the types of systems. Studying the molecules of life by organic chemistry. Identification and quantification of materials in a mixture in analytical chemistry. Chemical principles underlying basic biological systems.
эссе, добавлен 22.11.2015The role of the technique of volumetric titration with a working solution of sodium thiosulfate with a visual indication of the starch equivalence point during the analysis of the residual active chlorine. Evaluation of its advantages and disadvantages.
статья, добавлен 10.05.2018Applications heterocyclic compounds; approaches to synthesis. Familiarization with effective conversion of organic compounds into valuable fluorinated products. The use of fluorinated triazoles for the protection of metals and alloys from corrosion.
научная работа, добавлен 05.03.2013Phase analysis and the crystal structure of the compounds has been investigated by means of X-Ray analysis. Magnetic properties of two synthesised compounds were investigated revealing paramagnetic behaviour in whole investigated temperature range.
статья, добавлен 20.07.2022Shannon’s entropy and Weighted entropy. Weighted entropy and it’s applications. Ranking chemicals in quantitative High Throughput Screening. The studies of weighted entropy. Weighted entropy in Bayesian problem, as a measure of an investment risk.
магистерская работа, добавлен 30.08.2016Investigation of optical absorption spectra of YAG: Cr, Mg, and GGG: Cr, Mg films during high-temperature annealing in oxidation and reduction atmospheres. Factors to increase in absorption in the visible region, the charge exchange of chromium ions.
статья, добавлен 29.09.2016Carboxymethyl cellulose as the one of largest and most widely used ether. Creating a uniform distribution of reagents in the area of chemical reactions - the process which underlying the modeling of macrokinetics carboxymethylation of cellulose.
статья, добавлен 05.12.2018Molecular geometry - the general shape of a molecule or the arrangement of atoms in three dimensional space. Physical and chemical properties of an atom. Main examples of predicting molecular geometry. The valence shell electron and her repulsion.
презентация, добавлен 16.10.2014Synthesis ferroelectric compounds Sr(B1/3Nb2/3)O3 by solid state reaction technique. Consideration of the correlation between the dielectric response and transport behavior. Emprovement dielectric material properties. Motion energy storage devices.
статья, добавлен 30.07.2016Study of the disinfecting effect of the physical and chemical properties accompanying hydrodynamic cavitation on the sanitary index of microorganisms in water. Model for determining the result of disinfection in conditions of hydrodynamic cavitation.
статья, добавлен 21.12.2016Physical and chemical properties of the drugs. Reactions to chloride ions Cl- in a solution of AgNO3 in HNO3. Photocolorimetry with painted ferum hydroxamate. Reaction on heterocyclic atom of nitrogen. Using of methods of quantitative determination.
презентация, добавлен 24.11.2016Synthesis of block copolymers via the polymerization of methyl methacrylate initiated by Ce4 - PEG system using a functional peroxidecontaining the services of an agent. Rheological and colloidal-chemical characteristics of new polyampholitic surfactant.
статья, добавлен 23.02.2016The basic properties of alkoxides. Production technology of alkali metals alkoxides. Direct Synthesis in the Interaction of Metal and Alcohol. Interaction Metals Oxides and Hydroxides with Alcohols. Exchange reactions with alcohols, transesterification.
статья, добавлен 28.07.2017Synthesis of folate-ferrocene conjugate (FFC) through a stage of synthesis ferrocene carboxylic acid. Confirmation of the structure of the conjugate by the methods of spectroscopy. Studies of the biological activity of FFC by the method of tissue culture.
статья, добавлен 21.12.2016