Sample ID Brine Salinity ppm pH SC % SDR %
S-BD-F-1 - - 94.40 -
Constant pH- In the absent of Alkali
S-AD-F-2 60,000 Adjusted to 7 88.31 6.45
S-AD-F-4 40,000 89.18 5.53
S-AD-F-6 25,000 90.18 4.47
S-AD-F-8 10,000 91.53 3.04
S-AD-F-10 5,000 92.37 2.15
Variable pH – in the presence of 2.5% Alkali
S-AD-F-12 60,000 13.20 79.31 15.99
S-AD-F-14 40,000 13.01 80.08 15.17
S-AD-F-16 25,000 12.85 84.18 10.83
S-AD-F-18 10,000 12.63 88.53 6.22
S-AD-F-20 5,000 12.34 90.32 4.32
Table 2: The effect of different brine salinities on silica concentration (SC) and silica dissolution ratio (SDR) before and after saturation.