CI Alkalinity Titrant, Low is a standardized reagent for low-range alkalinity determinations in industrial and commercial water treatment systems. In a 25 mL water sample, each drop equals 10 ppm alkalinity as CaCO₃, giving operators a simple, repeatable way to measure carbonate and bicarbonate alkalinity without turning routine field testing into arithmetic. That matters because alkalinity is one of the control points that tells the operator whether buffering capacity, corrosion tendency, and overall chemical stability are sitting where the treatment program expects them to be. Used in boilers, cooling towers, closed loops, and municipal water operations, this titrant supports routine monitoring of system chemistry and helps confirm whether treatment adjustments are actually moving the water in the right direction. Mercury-free, non-hazardous, and packaged in a practical 1-litre format, CI Alkalinity Titrant, Low is the measuring side of alkalinity control: the chemistry sets the target, and the titrant tells the operator whether the system is really there.