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Concentration- and ...
Concentration- and pH-dependence of highly alkaline sodium silicate solutions
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- Nordström, Jonas, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nilsson, Erik, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jarvoll Dae, Patrik, 1971 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nayeri, Moheb, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Palmqvist, Anders, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bergenholtz, Johan, 1964 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Matic, Aleksandar, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- Engelska.
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Ingår i: Journal of Colloid and Interface Science. - : Elsevier BV. - 0021-9797 .- 1095-7103. ; 356:1, s. 37-45
- Relaterad länk:
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http://dx.doi.org/10...
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https://gup.ub.gu.se...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this study two routes for the gelation of water glass have been investigated; the destabilization by a change in pH and by an increase in concentration through evaporation. Both methods produce optically transparent, highly viscous, homogeneous solutions. The structure and dynamics of the solutions along the two routes have been investigated with Dynamic Light Scattering, 29Si-Nuclear Magnetic Resonance spectroscopy, viscosity measurements and infrared spectroscopy. We find that the two routes are fundamentally different. Increasing the concentration of the sodium silicate system leaves the silica speciation apparently unchanged. Lowering the pH leads to condensation reactions, thus a change in the silica speciation.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Water glass
- Gelation
- Colloidal silica
- Dynamic light scattering
- 29Si NMR
- Gelation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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