Free Chlorine Vs Total Chlorine Vs Residual Chlorine. The key difference between free chlorine and total chlorine is that the free chlorine is the amount of chlorine that can inactivate pathogenic microorganisms present in the water whereas total chlorine is the sum of combined chlorine and free chlorine. It is an irritant and has a strong chlorine aroma.
Thus, measuring free chlorine is a. Free chlorine involves the amount of chlorine that’s able to sanitize contaminants, while combined chlorine refers to chlorine that has combined directly with the contaminants. The level of total chlorine should always be greater than or equal to the level of free chlorine.
Fac + cac = tc.
Free chlorine is a component of total residual chlorine, the portion of dissolved chlorine gas that is not bonded to any other reactants in water. This means that when its in the water it is limited in its efficiency. Free chlorine is a component of total residual chlorine, the portion of dissolved chlorine gas that is not bonded to any other reactants in water. Combined chlorine and total chlorine.