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An equation correlating the solubility of quartz in water from 25° to 900°C at pressures up to 10,000 bars

Geochimica et Cosmochimica Acta

By:
and
DOI: 10.1016/0016-7037(82)90135-1

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Abstract

The solubility of quartz in water from 25° to 900°C at specific volume of the solvent ranging from about 1 to 10 and from 300° to 600°C at specific volume of the solvent ranging from about 10 to 100 is given by an empirically derived equation of the form: log m = A + B(log V) + C(log V)2 where m is the molal silica concentration, V is the specific volume of pure water, and A = −4.66206 + 0.0034063T + 2179.7T−1 − 1.1292 × 106T−2 + 1.3543 × 108T−3B = −0.0014180T— 806.97T−1C = 3.9465 × 10−4T T is temperature in kelvins. The experimental data used in formulating the empirical relation ranged in pressure from 1 bar at 25°C to about 10,000 bars at 900°C, and the lowest pressure in the low-density steam region was about 30 bars. According to the above equation, the average difference in molality between 518 measured and calculated solubilities is −0.016 m with a standard deviation of 0.089.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
An equation correlating the solubility of quartz in water from 25° to 900°C at pressures up to 10,000 bars
Series title:
Geochimica et Cosmochimica Acta
DOI:
10.1016/0016-7037(82)90135-1
Volume
46
Issue:
10
Year Published:
1982
Language:
English
Publisher:
Elsevier
Description:
5 p.
First page:
1969
Last page:
1973
Online Only (Y/N):
N
Additional Online Files(Y/N):
N