Salt (Deicing)

Many of us are digging out of snow. So a question that is raised is what salt (or deicer) is better to use? Well it depends on your situation. For instance, if you are concerned about plants or animals (if you have a dog) certain deicers are better than others. Also, at certain temps, salt stops being effective. One of the best deicers for pets and plants is something called Calcium Magnesium Acetate (CMA). It works in 25 degrees or warmer but is slow at melting. It is however not hazardous to concrete/metal, pets, or plants. Most of us are going into the deep freeze for the next few days, so the "good" options are limited. Sodium Chloride is not preferred due to its need for +18 degrees, it melts ice slowly, and it can be harmful to plants/pets. Magnesium Chloride works in temps down to -13, melts quickly, doesn't harm metal/concrete, but it can be hard on plants/pets. Brine (salt water) mixtures can work in limited cases if the temperature allows. Sand, ashes, or kitty litter can add traction and attract heat (on sunny days) to melt snow/ice. Regardless, clear away as much snow and ice as you can before applying so the deicers can do their job, or at least expose the ground to the most sunlight possible. For more information: http://www.pwcgov.org/docLibrary/PDF/001794.pdf or http://www.stormh2o.com/october-2009/road-deicing-salt.aspx