Table 3

Initial chemical composition of the synthetic brine used in the numerical simulation, determined from the salt recipe in Table 2.

Components

Concentration

(molal1)


pH

~8 (~100°C)2


Ca+2

4.2609E-01


Cl-

1.5954E+00


F-

3.0940E-02


HCO3-

7.8739E-04


K+

7.3828E-02


Mg+2

2.4910E-01


Na+

2.9866E-01


SO4-2

2.3678E-02


SiO2(aq)

1.3088E-02


NO3-

4.5102E-02


1 From reported initial salt concentrations in mg/L (Table 2), assuming a solution density ~1.05 kg/L. The number of significant digits is provided only for accurate numerical charge balance and does not reflect the accuracy of the data.

2 Calculated by chemical speciation given input total (stoichiometric) H+ concentration

Zhang et al. Geochemical Transactions 2009 10:11   doi:10.1186/1467-4866-10-11

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