Home » Software to calculate water alkalinity - FCCA

Calculation of water alkalinity

Insert the values of the water for CO₃^2-, HCO₃^– and OH^– (in mg/l) (YELLOW CELLS).
You will automatically obtain the value of the alkalinity.(GREEN CELLS) :

Interpretation

CALCULATION OF THE ALKALINITY OF WATER
Element	Unit	Valor
CARBONATES, CO ₃^2-	mg/l
CARBONATES, CO ₃^2-	meq/l
BICARBONATES, HCO ₃^–	mg/l
BICARBONATES, HCO ₃^–	meq/l
HIDROXIDES, OH ^–	mg/l
HIDROXIDES, OH-	meq/l

ALKALINITY
Unit	Value
meq/l
mg/l CaCO₃
º German
º French
º English

REFERENCE
Rating	Alc (mg/L CaCO₃)
Very low	< 12.3
Low	24.6 – 41
Medium	41 – 98.4
High	98.4 – 147.6
Very high	> 147.6

Element	Mw	Ew
Ew = Mw/Valence, Mw = Molecular weight, Ew = Equivalent weight
CARBONATES, CO ₃^2-	60	30
BICARBONATES, HCO ₃^–	61	61
HIDRXIDES, OH ^–	17	17
CALCIUM CARBONATE, CaCO₃	100	50