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Silicon-29 NMR studies of aqueous silicate solutions: Part IV. Tetraalkylammonium hydroxide solutions

✍ Scribed by Robin K. Harris; Christopher T.G. Knight


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
475 KB
Volume
78
Category
Article
ISSN
0022-2860

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πŸ“œ SIMILAR VOLUMES


Quantitative silicon-29 NMR investigatio
✍ Robin K. Harris; Elke K. F. Bahlmann; Kenneth Metcalfe; Edward G. Smith πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 409 KB

## Abstract In concentrated alkaline sodium silicate solutions a consistent decrease in the amount of silicate monomer __Q__^0^, end‐groups Q^1^, cyclic trimer Q groups and middle groups Q^2^, and also branching groups in ring formations __Q__, is observed with increasing molar ratio of SiO~2~ to N

Silicon-29 NMR study of the formation of
✍ Abdolraouf Samadi-Maybodi; Robin K. Harris; S. Naser Azizi; Alan M. Kenwright πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 118 KB

## Abstract Silicon‐29 NMR spectra were obtained for more than 20 aqueous alkaline silicate solutions containing methanol. A signal assigned to CH~3~OSi(OH)~3~ or one of its deprotonated congeners was studied in detail for the first time for the solution conditions involved. Its appearance was moni

Silicon-29 nuclear magnetic resonance st
✍ Christopher T. G. Knight; Robin K. Harris πŸ“‚ Article πŸ“… 1986 πŸ› John Wiley and Sons 🌐 English βš– 421 KB

The 29Si spin-lattice relaxation times, &(%), of the various silicate anions present in high-purity alkaline silicate solutions are reported. Regular silicate cages display the longest T,(29Si) values and, in the case of the cubic octamenc cage, an unexpectedly large nuclear Overhauser enhancement,

Method for the quantification of silicon
✍ Elke K. F. Bahlmann; Robin K. Harris; Barry J. Say πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 192 KB

## Abstract A method is described for obtaining quantitative intensity data from solution‐state spectra by a combination of coaxial tubes and sample replacement to take account of spectrometer electronic effects. The protocol was applied to two sodium silicate solutions of high silica content, and