Scotwood Industries 9J-RR-MAG Pet Friendly 9-1/2-Lb. Ice Melt Quantity 4Scotwood Industries 9J-RR-MAG Pet Friendly 9-1/2-Lb. Ice Melt – Quantity 4. Chemical Composition: Magnesium Chloride. Lowest Effective Temperature: -15 °F. Container Size: 9.5 lb. ROAD RUNNER ICE MELT9.5# Prestone Driveway Heat is a concentrated Calcium Chloride pellet ice melt. Being able to melt snow and.