The aim of this work is to determine molecular association in solutions of cyclohexane-ethanol and dimethylformamide-ethanol. The refractometric method and Fourier transform infrared spectroscopy used to determine the optical features of the concentration characteristics of diluted ethanol solutions of cyclohexane and dimethylformamide. It was found for the first time that at some concentrations the hydrogen bond is stronger than for a pure ethanol solution. The first maximum of the excess refractive index of solutions is formed at a concentration of 0.02 mole fraction of cyclohexane and dimethylformamide, which is in good correlation with IR spectroscopy, indicating the largest number of formed hydrogen bonds.
| Mualliflar | BOZOROVA, Dilbar, GOFUROV, Shukur, ZIYAYEV, Mavlonbek, MIRTOJIYEVA, Dildora, ISMANOVA, Odina, ISMOILOVA, Oksana |
|---|---|
| Jurnal | Kimyo va kimyo texnologiyasi |
| Nashr sanasi | 2021-04-25 |
| Betlar | 44-47 |
| Til | en |
| DOI | 10.51348/yagd7598 |
DOI: 10.51348/yagd7598 · Maqolaning asl sahifasi
The modern fodder base does not allow organizing a full and balanced feeding of animals, which leads to the use of the genetic potential of livestock productivity by only 40-60%. As a result of the work, the extrusion…
The aim of this work is to synthesize, determine the composition and microstructure of complexes of copper (II) sulfate with collagen for use as a dye for textile material. Coordination complexes of copper (II) sulfate…
The reactions of interaction of acetylene with water vapor, acetic acid and ammonia in the presence of heterogeneous catalysts have investigated. Depending on the nature of the starting components used, acetaldehyde and…
The objective of the reaserch is to elaboration the composition of a wood-polymer composition based on polyvinyl chloride with improved performance properties. The influence of the components of the composition…
The results of a study present the effect of new modified ingredients on the complex of properties of composite elastomeric materials. Methods for modifying mineral fillers have developed. It found that the introduction…
The aim is to study the effect of the presence of free alkalis and acids on the properties of the complex lithium greases and the choice of the optimal dispersion medium, which provides the required physicochemical…
The development of new methods of synthesis using cheaper reagents for the preparation of maleic acid derivatives, the study of chemical properties and the determination of new directions for the practical application…
The advantages of synthesis of complex oxide compounds by solar energy, the possibility of obtaining highly textured nano materials are shown. The development of heliomaterial science, aimed at the synthesis of new…
The purpose of this study is the synthesis and study of modified sulfur concrete for use in industrial construction. To achieve this goal, sulfur concrete based on gossypol resin and pyrolysis distillate was modified…
The technology of extraction of cotton cake by the influence of a pulsed electric field on the extracted mass is researched. The dependence of the specific conductivity on the inverse temperature using the influence of…