Mowing Your Lawn
There are several products that can be used instead of Salt. • Sand, clean kitty litter, and used coffee grounds. These products provide great at traction absorb sunlight contributing to melting. Will not harm nearby plants. • Ashes for those with a wood burning fireplace, ashes are great option. They provide a lot of traction and absorb sunlight. Good for sunny day. • Beet juice being used on highway on it won or mixed with salt, safe and natural allows ice to melt even when air temperatures are extremely cold. • Potassium acetate, calcium magnesium acetate Acetates are supper-effective even at extremely low temperatures and are biodegradable. • ”Chlorides”: calcium chloride, magnesium chloride, potassium chloride Rock salt (sodium chloride) works better at low temperatures. Calcium chloride is preferred choice over magnesium chloride, as it works at lower temperatures and is applied at lower rate, leading to less chloride in streams. Potassium chloride is considered safest for pets and plants but does not work well at lower temperatures. All chloride products contribute to pollutant loads in stream If you used Rock Salt remember: Remove as mush ice and snow off paved surfaces as you can. A little salt: Rock salt about a handful per square yard. Calcium chloride should be spread even thinner, about a handful for 3 square yards. Air temperature matters. Rock salt is five time more effective at melting ice at 30 degrees than 20 degrees, and ineffective below 20 degrees. Calcium chloride is better for temperatures down to 0 degrees. Applying early can prevent ice crystals from forming and minimize the amount of salt used overall.
From Lowner Merion Township 2017 page 10