It is purer than rock salt and leaves no residue, ensuring that carpets, tiles, and other indoor surfaces remain clean.' However, white de-icing salt can be expensive, so most people use rock salt.

Honeoye Falls, N.Y. (WHAM) — As winter weather blankets the region, neighbors and businesses are feeling the pinch of a rock salt shortage. Candi Fitzgerald of Honeoye Falls said she searched ...