Salt is a great ice Melter because it helps in lowering the freezing point.
Road salt used to melt ice is often called rock salt, because its grains are much coarser than table salt.

It’s still the same molecule—sodium chloride—but table salt is ground, purified, and often has additives

like iodine. Road salt is usually not purified to the level of edible salt sold for human consumption.

Many western countries like Scandinavians, Canada & USA that receive heavy snow fall in winter season use rock salt regularly to keep their roads open.

Pakistan (having second largest rock salt reserves in the world) has been exporting big quantities of rock salt to these countries for many years at competitive prices.