Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions
The constants of protolytic equilibria for hydroxyethylidene diphosphonic acid (HEDP), aminomethylated calix[4]resorcinol (AMC), and the composition based on them (AMC-HEDP) in a solution of nonionic surfactant-polyoxyethylated dodecanol Brij-35 have been determined by pH-metric titration with subse...
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Kazan Federal University
2018-06-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
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| author | E.A. Burilova T.V. Nikitina L.I. Vagapova Z.A. Nasirova A.N. Solodov J.R. Shaiymova R.R. Amirov |
| author_facet | E.A. Burilova T.V. Nikitina L.I. Vagapova Z.A. Nasirova A.N. Solodov J.R. Shaiymova R.R. Amirov |
| author_sort | E.A. Burilova |
| collection | DOAJ |
| description | The constants of protolytic equilibria for hydroxyethylidene diphosphonic acid (HEDP), aminomethylated calix[4]resorcinol (AMC), and the composition based on them (AMC-HEDP) in a solution of nonionic surfactant-polyoxyethylated dodecanol Brij-35 have been determined by pH-metric titration with subsequent mathematical processing of the data. In addition to monomeric forms, the existence of several dimeric forms of different extent of protonation has been also found in the solutions of AMC and HEDP. For the composition based on AMC-HEDP in the pH range from acid to neutral, the formation of mixed forms of the following composition has been established: H16YL40, H15YL41–, H14YL42–, H13YL43–, H12YL44–, H7YL2–, H6YL22–. |
| format | Article |
| id | doaj-art-e19d06f20225440ba231cb4e8b8288be |
| institution | OA Journals |
| issn | 2542-064X 2500-218X |
| language | English |
| publishDate | 2018-06-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета: Серия Естественные науки |
| spelling | doaj-art-e19d06f20225440ba231cb4e8b8288be2025-08-20T01:47:22ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Естественные науки2542-064X2500-218X2018-06-011602185199Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutionsE.A. Burilova0T.V. Nikitina1L.I. Vagapova2Z.A. Nasirova3A.N. Solodov4J.R. Shaiymova5R.R. Amirov6Kazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaA.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Kazan, 420088 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaThe constants of protolytic equilibria for hydroxyethylidene diphosphonic acid (HEDP), aminomethylated calix[4]resorcinol (AMC), and the composition based on them (AMC-HEDP) in a solution of nonionic surfactant-polyoxyethylated dodecanol Brij-35 have been determined by pH-metric titration with subsequent mathematical processing of the data. In addition to monomeric forms, the existence of several dimeric forms of different extent of protonation has been also found in the solutions of AMC and HEDP. For the composition based on AMC-HEDP in the pH range from acid to neutral, the formation of mixed forms of the following composition has been established: H16YL40, H15YL41–, H14YL42–, H13YL43–, H12YL44–, H7YL2–, H6YL22–.https://kpfu.ru/protolytic-properties-of-aminomethylated-342803.htmlprotolytic propertiesaminomethylated calix[4]resorcinolhydroxyethylidene diphosphonic acidamc-hedp compositionph-metric titration |
| spellingShingle | E.A. Burilova T.V. Nikitina L.I. Vagapova Z.A. Nasirova A.N. Solodov J.R. Shaiymova R.R. Amirov Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions Учёные записки Казанского университета: Серия Естественные науки protolytic properties aminomethylated calix[4]resorcinol hydroxyethylidene diphosphonic acid amc-hedp composition ph-metric titration |
| title | Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions |
| title_full | Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions |
| title_fullStr | Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions |
| title_full_unstemmed | Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions |
| title_short | Protolytic properties of aminomethylated calix[4]resorcinol, hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions |
| title_sort | protolytic properties of aminomethylated calix 4 resorcinol hydroxyethylidene diphosphonic acid and their composition in aqueous micellar solutions |
| topic | protolytic properties aminomethylated calix[4]resorcinol hydroxyethylidene diphosphonic acid amc-hedp composition ph-metric titration |
| url | https://kpfu.ru/protolytic-properties-of-aminomethylated-342803.html |
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