CW-L23N liquid
TYPE : CHILLED WATER/HOT WATER/CLOSED RECIRCULATING SYSTEMS – CORROSION INHIBITOR; ANTIFOULANT; MICROBIOCIDE.
CW-L23-N is a unique and specialized mildly alkaline nitrite based corrosion inhibitor for closed water circuits. It is available in a liquid and in a solid form (CW-S80-C).
It contains the necessary corrosion inhibitors for mild steel and copper, an internal indicator, a biocide and a hardness management compound. In its neat form the indicator is used to confirm that the product is suitably alkaline and when controlled at the required levels the indicator will reveal whether the pH in the circuit is adequate. At the required control limits the pH will not increase so as to affect amphoteric metals such as aluminium and zinc compounds harshly.
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Appearance : Yellowish Liquid
pH neat soln. at 25oC : 7.5-9.0
Specific Gravity at 25oC : 1.13-1.17
CW-L23-N is nominally dosed at between 2500-3000mg/l in the closed water system to maintain a minimal residual as nitrite at between 300 – 400mg/l as well as an effective biocide residual. In chilled water circuits hardness salt precipitation is not highly problematic, however, in hot water circuits this may prove otherwise.
Liquid CW-L23-N can be stored for up to 24 months from the date of manufacture, in its original, sealed packaging, at room temperature in a dry areaThis product can be safely stored in plastic type holding tanks designed to manage the specific gravity listed. CW-L23-N must be protected from strong acids, freezing and excessive aeration. Protective clothing such as gloves and goggles should be worn when handling.