Water Forms on the Surface and in the Bulk of Silicon Dioxide

Autor:	V. I. Privalov, G. P. Panasyuk, I. V. Kozerozhets, Yu. D. Ivakin, Danchevskaya Marina N, I. L. Voroshilov
Rok vydání:	2021
Předmět:	Materials science Silicon dioxide Materials Science (miscellaneous) Atmospheric temperature range Mass spectrometry Inorganic Chemistry Thermogravimetry chemistry.chemical_compound Structural change Chemical engineering chemistry Thermal Anhydrous Physical and Theoretical Chemistry Quartz
Zdroj:	Russian Journal of Inorganic Chemistry. 66:724-730
ISSN:	1531-8613 0036-0236
DOI:	10.1134/s0036023621050120
Popis:	Thermodynamic characteristics and water evaporation mechanism from silica structure in temperature range 100–1000°С have been studied by thermogravimetry, mass spectrometry, 1Н and 29Si NMR. It has been shown that liquid, surface-bound, and molecular-dispersed water is present on the surface and in the bulk of silica particles. The role of different (ОН)n groups in the structural change of silica upon thermal and thermal steam treatment has been shown. A method for preparation of anhydrous silica used in the manufacture of high-quality quartz glass has been proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d04ba26008a89cbf9db6ed75d98db3ec https://doi.org/10.1134/s0036023621050120 Zobrazit plný text záznamu Full text from SpringerLink