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Title: A bicarbonate-rich liquid condensed phase in non-saturated solutions in the absence of divalent cations

Journal Article · · Frontiers in Bioengineering and Biotechnology
 [1];  [2];  [3];  [4];  [5]
  1. Embry-Riddle Aeronautical University, Daytona Beach, FL (United States)
  2. Univ. of Wisconsin, Madison, WI (United States)
  3. Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany)
  4. Arizona State Univ., Tempe, AZ (United States)
  5. Embry-Riddle Aeronautical University, Daytona Beach, FL (United States); Blue Planet, Ltd., Los Gatos, CA (United States)

Bicarbonate (HCO3-) and sodium (Na+)-containing solutions contain droplets of a separate, bicarbonate-rich liquid condensed phase (LCP) that have higher concentrations of HCO3- relative to the bulk solution in which they reside. The existence and composition of the LCP droplets has been investigated by nanoparticle tracking analysis, nuclear magnetic resonance spectroscopy, refractive index measurements and X-ray pair distribution function analysis. The bicarbonate-rich LCP species is a previously unaccounted-for, ionic phenomenon which occurs even in solutions with solely monovalent cations. Its existence requires re-evaluation of models used to describe and model aqueous solution physicochemistry, especially those used to describe and model carbonate mineral formation.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2470120
Journal Information:
Frontiers in Bioengineering and Biotechnology, Journal Name: Frontiers in Bioengineering and Biotechnology Vol. 12; ISSN 2296-4185
Publisher:
Frontiers Media S.A.Copyright Statement
Country of Publication:
United States
Language:
English

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