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Table 2 Analysis of the geothermal water from 24 June 2016

From: Rippled scales in a geothermal facility in the Bavarian Molasse Basin: a key to understand the calcite scaling process

Field parameters
pH (water at surface) 6.31   
Electric conductivity, \(\mu \hbox {S/cm} \, T_{ref} = 25^{\,\circ } \hbox {C}\) 639   
Redox potential, mV -247   
One liter of water contains:
  Mass Equivalents
  mg mmol %
Cations
Sodium (\({\hbox {Na}}^{+}\)) 129 5.62 76.5
Potassium (\({\hbox {K}}^{+}\)) 20.5 0.524 7.13
Ammonium (\({\hbox {NH}}_{4}^{+}\)) 3.10 0.172 2.34
Calcium (\({\hbox {Ca}}^{2+}\)) 16.7 0.833 11.3
Magnesium (\({\hbox {Mg}}^{2+}\)) 2.25 0.185 2.52
Strontium (\({\hbox {Sr}}^{2+}\)) 0.54 0.012 0.17
Barium (\({\hbox {Ba}}^{2+}\)) 0.17 0.003 0.03
Manganese (\({\hbox {Mn}}^{2+}\)) 0.00 0.000 0.00
Iron(II)+(III) as Iron(II) (\({\hbox {Fe}}^{3+,2+}\)) 0.01 0.001 0.01
 Sum of cations 172 7.35 100.0
Anions
Fluoride (\({\hbox {F}}^{-}\)) 2.81 0.148 2.03
Chloride (\({\hbox {Cl}}^{-}\)) 88.2 2.49 34.1
Bromide (\({\hbox {Br}}^{-}\)) 0.45 0.006 0.08
Sulfate (\({\hbox {SO}}_{4}^{2-}\)) 12.4 0.258 3.54
Hydrogen sulfide (\({\hbox {HS}}^{-}\)) 1.91 0.058 0.79
Hydrogencarbonate (\({\hbox {HCO}}_{3}^{-}\)) 265 4.33 59.4
 Sum of anions 371 7.29 100.0
Undissociated matter
Silicic acid (\({\hbox {H}}_{2} {\hbox {SiO}}_{3}\)) 105 1.34  
Boric acid (\({\hbox {H}}_3 {\hbox {BO}}_{3}\)) 9.20 0.149  
Total dissolved solids (TDS) 656