29Si NMR studies of the transformation of silicate anions in the system Na2O·SiO2·nH2O (n= 9,5) in crystals, melts, and solution
Autor: | Hubert Koller, Günter Engelhardt, Jürgen Felsche |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | J. Chem. Soc., Chem. Commun.. :371-372 |
ISSN: | 0022-4936 |
Popis: | A combined solid- and liquid-state 29Si NMR study shows that the monomeric silicate anions of crystalline sodium silicate hydrates Na2H2SiO4·nH2O (n= 8,4) upon melting undergo rapid condensation to distinct oligomer species, and that recrystallization of the melt involves hydrolysis of the oligomers and reconstitution of the initial monomeric silicate structure. |
Databáze: | OpenAIRE |
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