"Bare Ground liquid de-icing/anti-icing solution can be applied before or during an expected snowfall, preventing snow and ice from bonding to the surface and making it easier to remove ice and snow after a storm. U.S.A. Compares To 50-lb. rock salt, Material Type Magnesium chloride, Environmentally Friendly Yes, Temperature Range F Effective to -25, Coverage 1,000 sq. ft. per gal., Product Consistency Liquid, Compatible With All surfaces, Application Spray on, Capacity 2 1/2 gal. Safe for pets Lasts as long as 10 days The de-icing solution can be used after a snow storm to melt residual patches of ice and snow Meets or exceeds environmental safety standards"