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Efremov A.M.,Ivanovo State University of Chemistry and Technology | Titova E.S.,Ivanovo Institute of State Firefighting Service
Russian Journal of General Chemistry | Year: 2016

The possibility of plasma chemical conversion of hydrogen chloride was explored. It was shown that, for the typical conditions of atmospheric pressure discharges, the use of pure HCl as the plasma-forming gas does not provide the conversion degrees higher than 4%. It was found that high (>95%) HCl conversion degrees, as well as maximum yields of Cl2 may be obtained in HCl-O2 mixtures due to the plasma-assisted oxidative decomposition of the reactant. The optimal process conditions in terms of the electron density and feed gas composition were determined. © Pleiades Publishing, Ltd., 2016.


Chuvaev V.F.,RAS Frumkin Institute of Physical Chemistry and Electrochemistry | Rodnikova M.N.,RAS Kurnakov Institute of General and Inorganic Chemistry | Kiselev M.R.,RAS Frumkin Institute of Physical Chemistry and Electrochemistry | Syrbu A.A.,Ivanovo Institute of State Firefighting Service | Syrbu S.A.,Ivanovo State University
Russian Journal of Inorganic Chemistry | Year: 2010

p-(Alkoxybenzylidene)-p′-toluidines (ABTs) with 7, 8, and 10 carbon atoms in the alkyl moiety have been studied by wide-line 1H NMR and DSC. The thermotropic properties of these compounds have been studied in the temperature range 20-80°C, including main mesomorphic transformations of ABTs. The 1H NMR line shapes, widths, and second moments, as well as specific features of their temperature-induced changes, are discussed. The DSC data are compared with the character of mesomorphic transformations and 1H NMR data. The formation limits and ranges and stabilities of liquid-crystalline states of the ABT structure emerging on heating are determined. © 2010 Pleiades Publishing, Ltd.


Krivonogikh T.S.,Ivanovo Institute of State Firefighting Service | Pyreu D.F.,Ivanovo Institute of State Firefighting Service | Kozlovskii E.V.,Ivanovo Institute of State Firefighting Service | Titova E.S.,Ivanovo State University
Russian Journal of Inorganic Chemistry | Year: 2012

Mixed-ligand complexation of yttrium subgroup lanthanide ethylenediaminetetraacetates with asparaginate, iminodiacetate, and nitrilotriacetate ions in aqueous solution was studied by calorimetry and pH-metry. The full set of thermodynamic parameters (logK, Δ rG 0, Δ rH, Δ rS) of the addition reactions of Asp 2-, Ida 2-, and Nta 3- to LnEdta - (Ln 3+ = Tb 3+, Dy 3+, Ho 3+, Er 3+, Tm 3+, Yb 3+, Lu 3+) was determined at 298.15 K and ionic strength I = 0.5(KNO 3). The change in the thermodynamic parameters of the reactions over the series of lanthanides was discussed. © 2012 Pleiades Publishing, Ltd.


Lapshin D.N.,Ivanovo State University of Chemistry and Technology | Kunin A.V.,Ivanovo State University of Chemistry and Technology | Semenov A.D.,Ivanovo Institute of State Firefighting Service
Russian Journal of General Chemistry | Year: 2016

The influence of chemical impurities on hygroscopic properties, as well as on the grinding and modification efficiency of ammonium phosphate and ammonium sulfate was analyzed. It was shown that application of chemically pure ammonium sulfate and ammonium phosphate free of ammonium fluoride and magnesium phosphate impurities provides the best conditions for obtaining fire extinguishing dry powders with high fire suppression ability and properties that satisfy relevant specifications. © Pleiades Publishing, Ltd., 2016.


Taratanov N.A.,Ivanovo Institute of State Firefighting Service | Yurkov G.Yu.,RAS Institute of Metallurgy | Koksharov Yu.A.,Moscow State University | Bouznik V.M.,RAS Institute of Metallurgy
Inorganic Materials: Applied Research | Year: 2011

By using the method of thermal destruction of metal-containing compounds, a nanomaterial is obtained that includes rhenium-containing nanoparticles stabilized on a surface of microgranules of polytetrafluoroethylene (PTFE). The obtained compositions were characterized by methods of transmission electron microscopy (TEM), X-ray diffraction (XRD), electron paramagnetic resonance (ESR), and differential thermal analysis and thermogravimetric analysis (DTA/TGA). The average size of Re-containing nanoparticles is in the range from 5 to 30 nm and depends on the initial metal-containing compounds. Nanoparticles have complex structure and consist of several components: Re, ReO2, and Re2O7. © 2011 Pleiades Publishing, Ltd.

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