Chemical evolution of dissolved inorganic carbon species flowing in thin water films and its implications for (rapid) degassing of CO2 during speleothem growth

2013 ◽  
Vol 107 ◽  
pp. 242-251 ◽  
Author(s):  
Maximilian Hansen ◽  
Wolfgang Dreybrodt ◽  
Denis Scholz
Keyword(s):  
Chemical Evolution ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Carbon Species ◽  
Water Films

Quantification of the Dissolved Inorganic Carbon Species and of the pH of Alkaline Solutions Exposed to CO2 under Pressure: A Novel Approach by Raman Scattering

2014 ◽  
Vol 86 (19) ◽  
pp. 9895-9900 ◽  
Author(s):  
Thomas Beuvier ◽  
Brice Calvignac ◽  
Jean-François Bardeau ◽  
Alain Bulou ◽  
Frank Boury ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Alkaline Solutions ◽  
Carbon Species ◽  
Novel Approach

scholarly journals Equilibration Times of Dissolved Inorganic Carbon During pH Transitions

2022 ◽  
Vol 9 ◽  
Author(s):  
Ziv Sade ◽  
Shahar Hegyi ◽  
Itay Halevy
Keyword(s):  
Numerical Model ◽  
Chemical Evolution ◽  
Inorganic Carbon ◽  
Carbonic Acid ◽  
Dissolved Inorganic Carbon ◽  
Chemical Equilibration ◽  
Ph Increase ◽  
Opposing Effects

Equilibration times of dissolved inorganic carbon (DIC) depend on conversion reactions between CO2(aq) and the dissociation products of carbonic acid [S = (H2CO3) + (HCO3−) + (CO32−)]. Here, we develop analytical equations and a numerical model to calculate chemical equilibration times of DIC during pH transitions in buffered and unbuffered solutions. We approximate the equilibration degree of the DIC reservoir by the smaller of the CO2(aq) and S pools at the new pH, since the smaller pool is always farther from equilibrium during the chemical evolution. Both the amount of DIC converted and the rate of conversion differ between a pH increase and decrease, leading to distinct equilibration times for these general cases. Alkalinity perturbations in unbuffered solutions initially drive pH overshoots (increase or decrease) relative to the new equilibrium pH. The increased rates of DIC conversion associated with the pH overshoot yield shorter equilibration times compared to buffered solutions. Salinity has opposing effects on buffered and unbuffered solutions, decreasing and increasing equilibration times, respectively.

Correction to Quantification of the Dissolved Inorganic Carbon Species and of the pH of Alkaline Solutions Exposed to CO2 under Pressure: A Novel Approach by Raman Scattering

2014 ◽  
Vol 86 (23) ◽  
pp. 11927-11927 ◽  
Author(s):  
Thomas Beuvier ◽  
Brice Calvignac ◽  
Jean-François Bardeau ◽  
Alain Bulou ◽  
Frank Boury ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Alkaline Solutions ◽  
Carbon Species ◽  
Novel Approach

scholarly journals To Float or Not to Float: How Interactions between Light and Dissolved Inorganic Carbon Species Determine the Buoyancy of Stratiotes aloides

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0124026 ◽  
Author(s):  
Sarah F. Harpenslager ◽  
Alfons J. P. Smolders ◽  
Ariët A. M. Kieskamp ◽  
Jan G. M. Roelofs ◽  
Leon P. M. Lamers
Keyword(s):  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Carbon Species ◽  
Stratiotes Aloides
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