Deicing Salt is used on icy surfaces to reduce the melting point of water and prevent ice formation. This process includes; plowing and continual application of chemicals and abrasives.
Deicing salts reduce the melting point of water and prevent ice from forming. Sodium chloride is the most commonly used product for deicing roads, sidewalks, parking lots and driveways. Deicing salts are toxic to aquatic species and can kill plants through burning and dehydration.
The most common substance used for deicing roads and highways is Sodium Chloride (NaCl) or table salt known as rock salt when spread on the road because of its much larger granules.
De-icing works by spraying a heated chemical fluid that melts off the ice. Then the application of anti-icing fluid keeps ice from forming again. Even small amounts of ice, snow, frost or any other contaminants can disrupt the airflow and could potentially interfere with the plane taking off safely