Total dynamics of quartz-water system at ambient conditions

FAIMON, Jiří. Total dynamics of quartz-water system at ambient conditions. Aquatic Geochemistry. Netherlands: Springer Netherlands, 2005, vol. 2005, No 11, p. 139-172, 33 pp. ISSN 1380-6165.

Basic information

• Original name: Total dynamics of quartz-water system at ambient conditions
• Name in Czech: Celková dynamika systému křemen-voda za normálních podmínek
• Authors: FAIMON, Jiří (203 Czech Republic, guarantor).
• Edition: Aquatic Geochemistry, Netherlands, Springer Netherlands, 2005, 1380-6165.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: Geochemistry
• Country of publisher: Netherlands
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 0.963
• RIV identification code: RIV/00216224:14310/05:00030986
• Organization unit: Faculty of Science
• UT WoS: 000228868000002
• Keywords (in Czech): komplex; rozpouštění; dynamika; tok; růst; modelování; PHREEQC; křemen; povrch
• Keywords in English: complex; dissolution; dynamics; flux; growth; modeling; PHREEQC; quartz; surface
• Tags: COMPLEX, dissolution, dynamics, Flux, growth, modeling, PHREEQC, Quartz, Surface
• Tags: International impact, Reviewed

Abstract

New data on the dissolution and growth of quartz in acid, nearly neutral and slightly alkaline solutions at ambient conditions are presented. During batch dissolutions, aqueous Si-concentrations increased nonlinearly towards limit values. During parallel growth experiments, however, the high Si-concentrations corresponding to 13-fold supersaturation with respect to quartz did not decreased. To interpret these results, two dynamic models (1) a reaction model and (2) a surface-complexation model, were derived. Both models were focused on (a) reversible dissolution/growth of bulk quartz and b) irreversible dissolution of disturbed quartz (weakly bounded Si-atoms) on new surface.

Abstract (in Czech)

New data on the dissolution and growth of quartz in acid, nearly neutral and slightly alkaline solutions at ambient conditions are presented. During batch dissolutions, aqueous Si-concentrations increased nonlinearly towards limit values. During parallel growth experiments, however, the high Si-concentrations corresponding to 13-fold supersaturation with respect to quartz did not decreased. To interpret these results, two dynamic models (1) a reaction model and (2) a surface-complexation model, were derived. Both models were focused on (a) reversible dissolution/growth of bulk quartz and b) irreversible dissolution of disturbed quartz (weakly bounded Si-atoms) on new surface.

Links

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)