Amorphous silica solubilities--VI. Postulated sulfate-silicic acid solution complex

Details Amorphous silica solubilities--VI. Postulated sulfate-silicic acid solution complex Amorphous silica solubilities--VI. Postulated sulfate-silicic acid solution complex

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46..367m&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 46, Issue 3, pp.367-370

Computer Science

2

Scientific paper

A solution complex of composition Si(OH) 4 · SO 4 -2 is postulated to account for the salting-in of amorphous silica by aqueous sodium sulfate solutions at high temperatures. The postulate is suggested by 1. (1) the observed salting-in effec 2. (2) the calculation of association constants that adhere remarkably to a straight line van't Hoff relation, providing a nearly constant and feasible value for the heat of association from 0 to 350°C, and the reasonable spatial structure envisioned for the weak complex.

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