SYNTHESIS OF TITANIUM TETRAALKOXIDES FROM HYDROUS TITANIUM-DIOXIDE AND DIALKYL CARBONATES

Authors
SUZUKI E KUSANO S HATAYAMA H OKAMOTO M ONO Y
Citation
E. Suzuki et al., SYNTHESIS OF TITANIUM TETRAALKOXIDES FROM HYDROUS TITANIUM-DIOXIDE AND DIALKYL CARBONATES, Journal of materials chemistry, 7(10), 1997, pp. 2049-2051
Citations number
10
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry → ACNP
ISSN journal
09599428
Volume
7
Issue
10
Year of publication
1997
Pages
2049 - 2051
Database
ISI
SICI code
0959-9428(1997)7:10<2049:SOTTFH>2.0.ZU;2-T
Abstract
The reaction of hydrous titanium dioxide (TiO2 . nH(2)O, n = 0.15-1.23 ) and dialkyl carbonates at 453-573 K offers a convenient synthetic me thod for titanium tetraalkoxides which are free from chlorine-containi ng impurities. Thus, hydrous titanium dioxide was almost completely co nverted into Ti(OEt)(4) by its reaction with diethyl carbonate at 493 K for 16 h. The reaction proceeded faster in the presence of a sodium hydroxide catalyst. From the hydrous titanium dioxide and dipropyl car bonate, Ti(OPrn)(4) was obtained in a high yield.