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.     

Synthesis of substituted ureas from urea and halohydrins

Substituted ureas were prepared by reactions of 1,2-halohydrins with urea and were tested as antimicrobial additives to motor oils.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1681–1683.Original Russian Text Copyright © 2004 by Magerramov, Abdinbekova, Kurbanova, Zamanova, Allakhverdiev.     

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.     

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.     

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.     

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.     

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 zirconium,calcium, and barium on corrosion-electrochemical behavior of aluminum

The effect of zirconium, calcium, and barium on corrosion-electrochemical properties of aluminum was studied. A positive effect of alloying aluminum by these metals was revealed.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 11, 2004, pp. 1815–1818.Original Russian Text Copyright © 2004 by Ganiev, Barotov, Inoyatov.     

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.     

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.     

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.     

Behavior of binary and ternary systems based on poly(vinyl chloride), poly(methyl methacrylate), and their copolymers

Mechanical properties, optical transmission, surface topography, and dielectric loss are studied for films formed by blends of polymers of vinyl chloride and methyl methacrylate with their copolymers.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 8, 2004, pp. 1360–1365.Original Russian Text Copyright © 2004 by Bichuch, Izvozchikova, Zaitsev, Kronman, Semchikov.     

Pyrochemical processing of tungsten- and cobalt-containing raw materials

A method for processing of secondary tungsten- and cobalt-containing materials is suggested. The optimal parameters of the processes involved and the consumption of chemicals are determined.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 11, 2004, pp. 1761–1763.Original Russian Text Copyright © 2004 by Zarubitskii, Orel, Dmitruk.     

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.     

Water-soluble polymer-colloid complexes of aluminum polyhydroxochloride and polyacrylamide in separation of model and real dispersions

The activity of polymer-colloid complexes of aluminum polyhydroxochloride and polyacrylamide in separation of model kaolin dispersions and some real dispersions was studied under free and hindered particle sedimentation conditions.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1699–1706.Original Russian Text Copyright ¢ 2004 by Novakov, S. Radchenko, F. Radchenko.     

Complex formation of carbonyls,carboxylates, and acetylacetonates of main-group and transition metals with hydroperoxides and alcohols

The thermodynamic and structural parameters of complexes formed by secondary and tertiary alcohols and hydroperoxides with carbonyls, carboxylates, and acetylacetonates of variable-valence metals were determined. The complexes of s and 3d elements with hydroperoxides have different structures.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 12, 2004, pp. 2011–2017.Original Russian Text Copyright © 2004 by Syroezhko, Proskuryakov.     

Oxidation of propylene and isobutylene in a reactor with barrier discharge

The oxidation of propylene and isobutylene in barrier-discharge plasma in the presence of octane was studied. The possible reaction mechanism was considered.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 11, 2004, pp. 1922–1924.Original Russian Text Copyright © 2004 by Kudryashov, Ryabov, Sirotkina, Shchegoleva.     

Reactions of aliphatic,aromatic, and heterocyclic aminothiols with diacetylene

Reactions of aliphatic, aromatic, and heterocyclic aminothiols with diacetylene in liquid ammonia or methanol furnished the corresponding aminoorganylsulfanylbutenynes of predominantly Z-configuration.Translated from Zhurnal Organicheskoi Khimii, Vol. 40, No. 11, 2004, pp. 1725–1727.Original Russian Text Copyright © 2004 by Volkov, Volkova.     

Biochemical and physicochemical treatment of flax fibers

Conditions were found for separating concomitant substances from cellulose in short flax fibers by treatment with surfactant and enzyme solutions. The chemical composition of the treated fibers was analyzed, and their structural organization was studied by IR Fourier spectroscopy.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 10, 2004, pp. 1743–1746.Original Russian Text Copyright © 2004 by Shamolina, Bochek, Zabivalova, Vlasova, Volchek, Sinitsin.     

Kinetics and mechanism of reaction between polyfluorinated alcohols and thionyl chloride

Complexing of polyfluorinated alcohols with triethylamine was studied by means of microcalorimetry, IR and NMR spectroscopy. The reaction kinetics of these polar complexes with thionyl chloride was investigated using calorimetry of heat fluxes applying mathematical simulation procedure. The second order of nucleophilic substitution reaction of chlorine by polyfluoroalkoxy group was established.Translated from Zhurnal Organicheskoi Khimii, Vol. 40, No. 11, 2004, pp. 1628–1631.Original Russian Text Copyright © 2004 by Rakhimov, Popov, Vostrikova, Vostrikova, Zauer.