Calculation of water hardness

Insert the values of the water for Ca+2 y Mg+2 (in mg/l) (YELLOW CELLS). Press the “calculate button to calculate the hardness of the water.

 

Interpretacion

CALCULATION OF THE HARDNESS OF THE WATER
Element Unit Vaue
Calcium mg/l
Calcium meq/l
Magnesium mg/l
Magnesium meq/l

HARDNESS
Unit Value
mg/l CaCO 3
mg/l HCO 3
mg/l Ca +2
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REFERENCE
Assessment Hardness (mg/L CaCO3)
Soft wate 0-50
Moderately hard water 50-150
Hard water 150-300
Very hard water >300

Ew = Mw/Valence, Mw = Molecular weight,
Ew = Equivalent weight
Element Mw Ew
Calcium 40,08 20,04
Magnesium 24,32 12,16
Limestone 100,1 50,05

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