2,6-Dimethyl-γ-Pyrone as a 13C NMR Indicator for Estimating the Acidity of Heteropolyacid Solutions Full article
Journal |
Russian Journal of Inorganic Chemistry
ISSN: 0036-0236 , E-ISSN: 1531-8613 |
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Output data | Year: 2004, Volume: 49, Number: 8, Pages: 1256-1259 Pages count : 4 | ||
Tags | COMPLEXES; HYDRATE | ||
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Abstract:
C-13 NMR of solutions containing 2,6-dimethyl-gamma-pyrone as a C-13 NMR indicator were used to estimate the acidity of aqueous solutions of ordinary acids (HCl, HNO3, HClO4) and heteropolyacids (HPA) (13 HPA of five structural types were used). In the concentration range [H+] = 0-1.7 mol/l, the change in the signal positions in the spectra reaches 10 ppm, which enables the use of this method to compare the solution acidities of ordinary acids. In HPA solutions, indicator-HPA anion and, probably, indicator-H+-HPA anion interactions were detected. It was concluded that the indicator method is inapplicable for acidity determinations in HPA solutions.
Cite:
Maksimov G.M.
, Golovin A.V.
2,6-Dimethyl-γ-Pyrone as a 13C NMR Indicator for Estimating the Acidity of Heteropolyacid Solutions
Russian Journal of Inorganic Chemistry. 2004. V.49. N8. P.1256-1259. WOS Scopus РИНЦ
2,6-Dimethyl-γ-Pyrone as a 13C NMR Indicator for Estimating the Acidity of Heteropolyacid Solutions
Russian Journal of Inorganic Chemistry. 2004. V.49. N8. P.1256-1259. WOS Scopus РИНЦ
Original:
Максимов Г.М.
, Головин А.В.
Применение ЯМР 13С индикатора 2,6-диметил-γ-пирона для оценки кислотности растворов гетерополикислот
Журнал неорганической химии. 2004. Т.49. №8. С.1362-1365. Scopus РИНЦ
Применение ЯМР 13С индикатора 2,6-диметил-γ-пирона для оценки кислотности растворов гетерополикислот
Журнал неорганической химии. 2004. Т.49. №8. С.1362-1365. Scopus РИНЦ
Dates:
Submitted: | Aug 1, 2003 |
Published print: | Aug 1, 2004 |
Identifiers:
Web of science | WOS:000223629300018 |
Scopus | 2-s2.0-9344249533 |
Elibrary | 13466547 |