Zobrazeno 1 - 10
of 32
pro vyhledávání: '"A. N. Chebotaryov"'
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 1(73), Pp 76-86 (2020)
The pH-metric, conductometric and spectrophotometric study of the acid-base and electrochemical properties of methylammonium sulfamate aqueous solutions (1·10-4 – 1·10-2 М) in the temperature range 293 – 313 K has been done. The increase in pH
Externí odkaz:
https://doaj.org/article/fa696293b86c405ab6d89117e1dc1909
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 1(69), Pp 92-104 (2019)
Acid-base properties of aminomethanesulfonic acid N-n-propyl (n-PrAMSA), N-n-butyl (n-BuAMSA) and N-n-heptyl (n-HpAMSA) derivatives (YAMSA) in aqueous solutions at 293 – 313 K were investigated by pH measurements. The ion-molecular composition of t
Externí odkaz:
https://doaj.org/article/69cceba6f244453aad36715e348ff458
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 23, Iss 3(67), Pp 16-28 (2018)
Conductometric and pH-metric studies of the electrochemical properties of aqueous solutions (1∙10-4 ÷ 9∙10-3 М) of five aminomethanesulphonic acid N-alkylated derivatives (YAMSA) were carried out in the temperature range 293 ÷ 313 K. N-methyla
Externí odkaz:
https://doaj.org/article/a422e85f3e3c4be8b0f6e4b1018d8d36
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 23, Iss 1(65), Pp 109-122 (2018)
The acid-base interaction in the Gly-NaOH-H2O and Gly-monoethanolamine (MEA) – H2O systems was studied by pH-metric method in the temperature range 293-313 K. The ionmolecular composition of the Gly-NaOH-H2O system was calculated, the dissociation
Externí odkaz:
https://doaj.org/article/a77361b715d840088f1352c73be51b48
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 22, Iss 1(61), Pp 6-19 (2017)
The literature data on the thermodynamics of ethanolamines onium cations dissociation have been systematized and generalized. The correlation between these cations dissociation thermodynamic functions (DH and DS) and physicochemical properties (Tmp.,
Externí odkaz:
https://doaj.org/article/2a5573b6227b447699a17c0250b77ee6
Autor:
A. N. Chebotaryov, E. M. Rakhlytskaya
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 20, Iss 4(56), Pp 75-83 (2015)
The adsorption properties of organosilicas – dimethylchlorsilaneaerosil (DMCSA), previously hydrophilized by organic molecules of the polar nature (ethanol, acetone) to wards to aqueous solutions of Al, Ga, In were studied. It is shown that allocat
Externí odkaz:
https://doaj.org/article/6083bb68666a4ab19db04f07500876c6
Autor:
M. V. Shestakova, A. N. Chebotaryov
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 20, Iss 3(55), Pp 76-81 (2015)
The tetrafluoroborate complexes of Zn (II) with o-, m- and p-phenylenediamines (FDA) have been synthesized. The investigation of the stoichiometry and the structure of synthesized compounds have been carried out by different physicochemical methods.
Externí odkaz:
https://doaj.org/article/34ddf808aa2547d1abe05d8c5d64d945
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 19, Iss 2(50), Pp 44-49 (2015)
The antioxidative activity of extracts from plants with hepatoprotective properties have been investigated. Make a comparative evaluation between the content of flavonoids and polyphenolic compounds in the extracts and their antioxidant activity.
Externí odkaz:
https://doaj.org/article/d8cdb52803014848954bbe353003fb7c
Autor:
A. N. Chebotaryov, Н. M. Guzenko
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 15, Iss 13, Pp 80-85 (2015)
Individual influence of inorganic ions natural and sewages on reactions of a complex formation of chromium(VI) with organic reagents 1,5-diphenilkarbazide and carmoazine, and also process sorption extractions of complexes chromium(III) diphenylcarbaz
Externí odkaz:
https://doaj.org/article/76d8f7245edb4c0c9758173f67a687e2
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 17, Iss 3(43), Pp 29-36 (2014)
The thermodynamic ionization constants of aniline, pyridine and octylamine in waterdimethylformamide and water-dioxane media were determined by potentiometric titration method. Mathematical models that adequately describe the change of the nitrogenco
Externí odkaz:
https://doaj.org/article/a7db4bce79904436887d68661537857c