Road salt

An Econ-brand salt spreader spreading salt on a road during the 2010 UK winter.

Road salt (also known as de-icing salt or snow salt) is a salt used mainly as an anti-slip agent in winter road conditions, but also to prevent dust and snow build-up on roads.[1] Various kinds of salts are used as road salt, but calcium chloride and sodium chloride (rock salt) are among the most common.[2][3] The more expensive magnesium chloride is generally considered safer, but is not as widely used because of its cost and effect on structural integrity.[4][5] When used in its solid form, road salt is often pre-wet to accelerate the ice-melting process.[6]

  1. ^ "Winter is Coming! And with it, tons of salt on our roads". www.epa.gov. 2021-03-08. Retrieved 2024-10-04.
  2. ^ Rasevic, Paul (2018-10-12). "Comparing Calcium Chloride vs Sodium Chloride for Melting Ice and Snow". Snow & Ice Salt & Chemicals Unlimited. Retrieved 2024-10-04.
  3. ^ "Calcium Chloride vs. Rock Salt. Which do you use?". Peters Chemical Company. Retrieved 2024-10-04.
  4. ^ "Magnesium Chloride As A Road Deicer: A Critical Review". Peters Chemical Company. Retrieved 2024-10-04.
  5. ^ "Magnesium Chloride - A worse road salt than Calcium Chloride". www.salt.no. Retrieved 2024-10-04.
  6. ^ "The Trend of Pre-Wetting". SnowEx. Retrieved 2024-10-04.