Unionized Ammonia Toxicity Fraction Calculator
Intro to Unionized Ammonia Toxicity
Water quality consultants managing commercial recirculating aquaculture systems (RAS) must rapidly quantify lethal NH3 spikes from total ammonia readings without manual curve-fitting, ensuring species-specific safety thresholds are met before fish stress occurs. This tool calculates the toxic NH3 fraction of TAN using the temperature-dependent pKa formula: pKa = 0.09018 + 2729.92 / (T + 273.15), applying the standard 1 / (10^(pKa-pH) + 1) ratio, providing critical real-time insights for aquaculture safety.
Unionized Ammonia Analyzer
Unionized Ammonia (NH3) Fraction (%)
0.00
Toxic NH3 (mg/L)
0.00
Formulas used: pKa = 0.09018 + 2729.92 / (T + 273.15); f = 1 / (10^(pKa-pH) + 1)