Chloride runoff limits catch every de-icer equally
Road authorities across Minnesota, Wisconsin, Ontario and parts of Northern Europe are operating under water quality limits near 230 milligrammes per litre of chloride in receiving watercourses, and those limits make no distinction at all between sodium and magnesium salts. Magnesium chloride had been positioned for twenty years as the environmentally preferable option on corrosion and application rate, and that argument does not address the parameter now being regulated. Commercially this threatens 38% of volume in the affected jurisdictions and pushes road authorities toward brine pre-wetting, abrasives and reduced application rather than toward a different chloride.
Market Impact: Requires 99.5% anhydrous purity








