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LSI Calculator - Alco Chemical
 
LSI Calculator 

Instructions:

The Langelier Saturation Index or LSI is a common method used to predict the potential for calcium carbonate precipitation in water. To use the calculator, enter the values required below. The calculator will then derive the LSI.

Required entries
Bulk Water Temperature (ºF)
Specific Conductivity (micromhos)
Calcium Concentration (mg/L as CaCO3)
Total Alkalinity (M) (mg/L as CaCO3)
Bulk Water (pH)
   
LSI   Comment:  
Bulk Water Temperature (ºK)
Ca2+ Concentration (Molarity)
Total (M) Alkalinity (Molarity as CaCO3)
pK2
pKso (calcite)
pKion
pCa
pAlk
pHs