Keep your parking lot, steps, porch, or storefront walkway safely clear of ice and snow with The Cope Company 25 lb. bag of Halite rock salt! It improves safety by combining with snow and ice to form saline, which has a lower freezing point than water, and effectively melts at temperatures as low as 15 degrees Fahrenheit for long periods of time! Rock salt, the common name for the mineral form of sodium chloride called "halite," is one of the most affordable and widely used ice melting solutions today.