Polychronous kinetics of oxidative delignification of coniferous kraft cellulose with hydrogen peroxide

The kinetics of oxidative delignification of coniferous kraft cellulose with hydrogen peroxide in the temperature range 60–100°C was studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1739–1742.Original Russian Text Copyright © 2004 by Shcherbakova, Demin, Mikhailov.     

Effect of heat treatment on thermal stability of limestone

The nature of the anomalous effect exerted by the heat treatment of limestone at 500 and 600°C on its thermal stability at 825°C was studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 9, 2004, pp. 1435–1437.Original Russian Text Copyright © 2004 by Kabanov.     

Specific features of vulcanization of unsaturated rubbers with polymeric <Emphasis Type="Italic">p</Emphasis>-dinitrosobenzene

Conditions of vulcanization of unsaturated rubbers were studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1722–1724.Original Russian Text Copyright ¢ 2004 by Zaikov, Klyuchnikov, Makarov, Deberdeev.     

Inhibiting effect of fullerenes C<Subscript>60</Subscript> and C<Subscript>70</Subscript> on high-temperature oxidative degradation of copolymers of methyl methacrylate with methacrylic acid and methacrylamide

The inhibiting effect of fullerenes on thermal oxidative degradation of copolymers of methyl methacrylate with methacrylic acid and methacrylamide at 340°C was studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 12, 2004, pp. 2047–2049.Original Russian Text Copyright © 2004 by Troitskii, Khokhlova, Konev, Denisova, Novikova.     

Nucleophilic substitution of chlorine with hydrazine and methylhydrazine in chlorinated pyridazines and pyridazones

The reactions of methylhydrazine and hydrazine hydrate with chlorinated pyridazines and pyridazones were studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 12, 2004, pp. 2021–2024.Original Russian Text Copyright © 2004 by Baranov, Tsypin, Malin, Laskin.     

Hydrated cobalt(II) and nickel(II) ammine diphosphates isolated from aqueous solutions

Hydrated amorphous cobalt and nickel(II) ammine diphosphates were prepared.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 9, 2004, pp. 1421–1424.Original Russian Text Copyright © 2004 by Voitenko, Zhilyak, Kopilevich.     

Kinetic features of catalytic decomposition of cyclohexyl hydroperoxide and 1-methylcyclohexyl hydroperoxide

Catalytic decomposition of cyclohexyl and 1-methylcyclohexyl peroxides in the presence of 3d-metal acetylacetonates was studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 8, 2004, pp. 1316–1322.Original Russian Text Copyright © 2004 by Syroezhko, Begak.     

Surface tension and density of a sodium hydroxide melt

The surface tension and density of a sodium hydroxide melt were determined experimentally in a wide temperature range.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 12, 2004, pp. 2054–2055.Original Russian Text Copyright © 2004 by Patrov, Yurkinskii.     

Use of latex systems for controlling the properties of urea-formaldehyde resins

The influence of latex formulations and a filler, Vulkasil, on the processing and physicochemical properties of urea-formaldehyde resins was studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1725–1728.Original Russian Text Copyright © 2004 by Glazkov.     

Correlation analysis of diffusion of organic solvents across synthetic low-polar polymeric membranes

The influence exerted by physicochemical characteristics of organic solvents on their diffusion across polymeric membranes can be quantitatively using linear multiparametric equations.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1714–1718.Original Russian Text Copyright ¢ 2004 by Makitra, Pristanskii.     

Determination of the deuterium content in organic compounds by gas chromatography

A gas-chromatographic method was developed for determining deuterium in organic compounds at its atomic fraction of 1 to 99%. The accuracy of the method is 0.1–0.5%.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 8, 2004, pp. 1346–1350.Original Russian Text Copyright © 2004 by Egorov, Matyukhova, Demidova, Platonov, Proskuryakov.     

A procedure for preparing <Emphasis Type="Italic">N</Emphasis>-hydroxyethyl-substituted succinimide and phthalimide

Conditions of synthesis of N-hydroxyethyl-substituted succinimide and phthalimide by reactions of dicarboxylic acid imides with aminoethanol were optimized.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 12, 2004, pp. 2059–2060.Original Russian Text Copyright © 2004 by Gasanov, Allakhverdiev.     

Complexation of anion exchangers based on polyimines and allyl and epoxy compounds with transition metal cations

Complexation of polymeric anion exchangers with transition metals was studied by polarographic and potentiometric titration techniques.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1693–1698.Original Russian Text Copyright © 2004 by Ergozhin, Chalov, Kovrigina, Iskakova, Nikitina.     

Distribution coefficients of phenol between water and hydrocarbons at 283–328 K

Distribution of phenol between aqueous and organic phases at maximal dilution in the range 283–328 K was studied chromatographically. Ten systems containing saturated and aromatic hydrocarbons were examined.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 11, 2004, pp. 1768–1771.Original Russian Text Copyright © 2004 by Dobryakova, Dobryakov.     

Use of thermally expanded graphite in water-purification and water-treatment systems

The adsorption and ion-exchange properties of thermally expanded graphite with respect to hardness cations and SO ₄ ^2– and Cl^– anions were studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 11, 2004, pp. 1833–1835.Original Russian Text Copyright © 2004 by Yakovlev, Finaenov, Yakovleva, Finaenova.     

Synthesis of di(polyfluoroalkyl) ethers

New procedures for preparing di(polyfluoroalkyl) ethers by reactions of polyfluoropropyl chlorosulfonites with polyfluorinated alcohols were tested.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 9, 2004, pp. 1573–1574.Original Russian Text Copyright © 2004 by Rakhimov, Nalesnaya, Vostrikova.     

Some aspects of the adhesion compatibility of hydrophobic and hydrophilic medicinal materials

The hydrophilicity and hydrophobicity of surfaces was studied after their treatment with solutions of NaOH and polyethylene.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1750–1752.Original Russian Text Copyright © 2004 by Ostrovidova, Zamyslov, Makeev.     

Optimization of electroplating processes in drum baths to obtain a more uniform coating

The optimization of the electroplating process in drum electrolyzers to minimize the standard deviation of the coating thickness is considered.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 9, 2004, pp. 1481–1486.Original Russian Text Copyright © 2004 by Karavaev, Litovka.     

Corrosion-electrochemical behavior of aluminum alloys low-alloyed with magnesium and alkaline-earth metals

In connection with the development of low-alloyed aluminum alloys, their corrosion-electrochemical behavior was studied in various media.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 8, 2004, pp. 1303–1307.Original Russian Text Copyright © 2004 by Ganiev, Barotov, Inoyatov.     

Effect of ozone on the corrosion of metals in an acid medium

The corrosion-electrochemical behavior of steels and metals in sulfuric, hydrochloric, and acetic acids in the presence of ozone was studied.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 11, 2004, pp. 1819–1825.Original Russian Text Copyright © 2004 by Tatarchenko.