Zobrazeno 1 - 10
of 18
pro vyhledávání: '"константи іонізації"'
Autor:
A. N. Chebotarev, E. M. Rakhlytskaya, D. V. Snigur, T. M. Scherbakova, K. V. Bevziuk, K. V. Snihur
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 2(74), Pp 97-102 (2020)
In this paper, the ionization constants (pKa) of some nitrogen-containing organic bases (morfoline, piperidine and benzylamine) in water-ethanol and water-acetone media at various concentrations of organic solvent in the system has been determined by
Externí odkaz:
https://doaj.org/article/a3d75e801cbe4e5f892c5af83d83f772
Autor:
D. V. Snigur, A. N. Chebotarev
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 1(73), Pp 87-97 (2020)
The present review is concerned with application possibility of tristimulus colorimetry method and argumentation of theoretical basis, and experimental approach of tristimulus colorimetry functions values use as analytical response in studies of acid
Externí odkaz:
https://doaj.org/article/ce21f227653c41c285b49db8e0a07f68
Publikováno v:
Odesa National University Herald. Chemistry; Vol. 28 No. 1(84) (2023); 53-57
Вестник Одесского национального университета. Химия; Том 28 № 1(84) (2023); 53-57
Вісник Одеського національного університету. Хімія; Том 28 № 1(84) (2023); 53-57
Вестник Одесского национального университета. Химия; Том 28 № 1(84) (2023); 53-57
Вісник Одеського національного університету. Хімія; Том 28 № 1(84) (2023); 53-57
In this paper, the ionization constants (pKa) of some nitrogen-containing organic bases (monoethanolamine, diethanolamine and triethanolamine) in water-ethanol, water-acetone and water-acetonitrile solutions at various concentrations of organic solve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=scientific_p::f2c18c2fff648a01865f2cc93f74f3b7
http://heraldchem.onu.edu.ua/article/view/277061
http://heraldchem.onu.edu.ua/article/view/277061
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 19, Iss 2(50), Pp 50-57 (2015)
The acid-base properties of yellow food dye E110 «Sunset Yellow FCF» was studied by chemical chromaticity, spectrophotometric and potentiometric methods in aqueous solutions and identified relevant ionization constants. A probable scheme of dye fun
Externí odkaz:
https://doaj.org/article/acc53d422dda41899e35dbad486b96b5
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
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 17, Iss 4(44), Pp 28-33 (2014)
The calculations of chromaticity yellowness index function and the CIE color difference function were made for cyanidin aqueous solutions based on the array of spectrophotometry data in a wide range of medium’s acidity (рН). It was shown the prin
Externí odkaz:
https://doaj.org/article/9a1887d10c0041d9a5ff49a00b3bf29a
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 18, Iss 2(46), Pp 35-40 (2014)
The possibility of the yellowness index use for the acid-base equilibrium study and ionization constants determination in dyes solutions is studied. It is shown that the yellowness index is suitable for the set task. Its use enables a more reasonable
Externí odkaz:
https://doaj.org/article/b473f4afe07240c2b69149d875e838fa
Autor:
E. M. Rakhlytskaya, K. V. Snihur, Kateryna Bevziuk, Alexander Chebotarev, D. V. Snigur, T. M. Scherbakova
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 2(74), Pp 97-102 (2020)
In this paper, the ionization constants (pKa) of some nitrogen-containing organic bases (morfoline, piperidine and benzylamine) in water-ethanol and water-acetone media at various concentrations of organic solvent in the system has been determined by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d6f5deab4487baf33d1f7c3af0faeab
https://doi.org/10.18524/2304-0947.2020.2(74).204386
https://doi.org/10.18524/2304-0947.2020.2(74).204386
Autor:
Chebotarev, A. N., Rakhlytskaya, E. M., Snigur, D. V., Scherbakova, T. M., Bevziuk, K. V., Snihur, K. V.
Publikováno v:
Odesa National University Herald. Chemistry; Том 25, № 2(74) (2020); 97-102
Вестник Одесского национального университета. Химия; Том 25, № 2(74) (2020); 97-102
Вісник Одеського національного університету. Хімія; Том 25, № 2(74) (2020); 97-102
Вестник Одесского национального университета. Химия; Том 25, № 2(74) (2020); 97-102
Вісник Одеського національного університету. Хімія; Том 25, № 2(74) (2020); 97-102
In this paper, the ionization constants (pKa) of some nitrogen-containing organic bases (morfoline, piperidine and benzylamine) in water-ethanol and water-acetone media at various concentrations of organic solvent in the system has been determined by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=scientific_p::ac6f6659ff9ba5aa2d4f8fcf88cbff84
http://heraldchem.onu.edu.ua/article/view/204386
http://heraldchem.onu.edu.ua/article/view/204386
Autor:
Snigur, D. V., Chebotarev, A. N.
Publikováno v:
Odesa National University Herald. Chemistry; Том 25, № 1(73) (2020); 87-97
Вестник Одесского национального университета. Химия; Том 25, № 1(73) (2020); 87-97
Вісник Одеського національного університету. Хімія; Том 25, № 1(73) (2020); 87-97
Вестник Одесского национального университета. Химия; Том 25, № 1(73) (2020); 87-97
Вісник Одеського національного університету. Хімія; Том 25, № 1(73) (2020); 87-97
The present review is concerned with application possibility of tristimulus colorimetry method and argumentation of theoretical basis, and experimental approach of tristimulus colorimetry functions values use as analytical response in studies of acid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=scientific_p::6e59eca5f93b16b5952bb2513c1966a9
http://heraldchem.onu.edu.ua/article/view/198321
http://heraldchem.onu.edu.ua/article/view/198321