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сколько стоит заказать работу? коллекция "revolution"
Главная Коллекция "Revolution" Химия
  • 131. Investigation of presence different surfactant on morphologies of PbTe nanostructures

    The hydrothermal method for preparation nanostructures with controllable morphologies. Synthesis of different morphologies of PbTe such as nanoparticles, nanorods of PbTe with using of Pb(NO3)2, TeCl4 and N2H4H2O in presence of different surfactants.

    статья (592,6 K)
  • 132. Investigation of sorption of calyx [4] arene and calix [4] resorcinarene tetraalkyl derivatives with the lichrosorb rp 18 surface by rp hplc and molecular modelling methods

    Tetrahydroxycalix[4]arene, tetraalkoxycalix[4]arenes and tetraalkylcalix[4]resorcinarenes are capable to reversible adsorption on the surface of the hydrophobic support lichrosorb RP 18. Conditions reversed high-performance liquid chromatography.

    статья (511,5 K)
  • 133. Investigation of the processes for determining the content of gold in products (on the example of the mining and processing plant "Nevsky" LLC "Druza")

    Conducting a study of the activities of the assay and analytical laboratory to determine the gold content in gold-containing products. Atomic absorption, tetrometric and assay-gravimetric analysis methods for determining the gold content in products.

    статья (19,5 K)
  • 134. Investigations of bis-chromophore systems: relationship between spectral behaviour and charge transfer in 2-(3-coumaroyl)-benzopyrylium perchlorates

    The dependence of spectral properties and interfragmental charge transfer on excitation, relaxation and excited state deactivation of 2-(3-coumaroyl)-benzopyrylium perchlorates. The positions of emission bands and rate constants of radiationless.

    статья (306,2 K)
  • 135. Ionic liquids for promising ion-conducting polymer materials of electrochemical devices

    Synthesis methods development of ionic liquids based on quaternary ammonium salts, their application as components of the polymeric electrolytes for electrochemical devices. Рroperties of liquids depending on the structure of cationic and anionic parts.

    статья (544,1 K)
  • 136. Ir spectroscopy and tg analysis investigations of functionalized go and go-containing divinyl rubber

    Analysis of the results of a study of graphene oxide and divinely rubber containing graphene oxide, functioning-RO (Oh)2 slot groups as a result of a kill-chlorophosphorylation reaction under the action of PCl3 in the presence of oxygen. Synthesis of GO.

    статья (339,1 K)
  • 137. Isothiazolium Salts and Their Use as Components for the Synthesis of S, N-Heterocycles

    Benzisothiazolium Salts. Heterocyclic Annulated Isothiazolium Salts. Structure. X-ray Diffraction. Molecular Spectra. Analytical methods. Reactivity, general survey. Oxidation to Sultims and Sultams. Ring Transformation in Other Heterocyclic Compounds.

    статья (598,7 K)
  • 138. Kinetic regularity of the formation of Fe (II)–Fe (III) LDH structures (Green Rust) on the steel surface in presence of the FeSO4 and Fe2(SO4)3 water solutions

    The kinetic of origin and transformation of the Fe(II)–Fe(III) LDH structures on the steel electrodes surface contacting with FeSO4 and Fe2(SO4)3 dispersion medium of the air oxygen into the system was studied. X-ray diffraction method of investigation.

    автореферат (2,1 M)
  • 139. Kinetics of diffusion mass transfer during filtration drying of grain materials

    Еxperimental investigations concerning coefficient of moisture pore diffusion from grain during filtration drying. The coefficient of pore diffusion the model was used basing on the solution of differential equation under boundary conditions of the type.

    статья (356,0 K)
  • 140. Kinetics of liquid-phase hydrogenation of n-valeraldehyde to n-amyl alcohol over a Ru/Al2O3 catalyst

    Schematic diagram of the experimental setup for hydrogenation. Effect of catalyst loading on initial rates of reaction. The use of gas chromatography for the analysis of the reaction. Langmuir–Hinshelwood-type models for single, dualsite mechanisms.

    статья (224,9 K)

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