Kathon™ LX 1.5% Biocide is a liquid biocide formulated with magnesium nitrate, copper nitrate, magnesium chloride, and isothiazolone compounds (5-chloro-2-methyl-2H-isothiazol-3-one and 2-methyl-2H-isothiazol-3-one). The carrier for this formulation is water, designed for use as an industrial additive.