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• <br />1 <br />_Main' .i andQualit <br />Chemical Melting Temperatures <br />Multiple products can be used in a snow and ice control program. This chart helps you choose <br />the correct product and apply it at the correcttimes. <br />Chemical <br />Lowest Practical <br />Melting Temperature <br />Concentration <br />*NaCI (Sodium Chloride)— Delivered as solid rock salt; <br />also can be made into a brine. The basis of most deicing <br />materials. Very corrosive. lnexpensive. <br />15° F <br />23.3% <br />*MgC12 (Magnesium Chloride)— Delivered as flakes, <br />pellets, or liquid. Often used to wet NaCI crystals to <br />increase adherence to road and reduce melting points. <br />Corrosive. Higher cost. <br />-10° F <br />27 to 30% <br />*CaCl2 (Calcium Chloride► — Delivered as flakes, <br />pellets, or liquid. Powerful deicer but extremely corrosive. <br />Sometimes used incorrectly to open storm drains. Higher <br />cost. <br />-20° F <br />30% <br />CMA (Calcium Magnesium Acetate)— Delivered <br />as a powder, crystals, pellets, or liquid. Liquid CMA is <br />used mainly on automated bridge deicing systems. Non- <br />corrosive, biodegradable. Sometimes added to sodium <br />chloride as a corrosion inhibitor. Alternative for areas <br />where chloride use must be limited. Higher cost. <br />20° F <br />32% <br />KAc (Potassium Acetate)— Delivered as a liquid. Used <br />on automated bridge deicing systems. Use for anti - icing, <br />deicing, and prewetting. Non- corrosive, biodegradable. <br />Alternative for areas where chloride use must be limited. <br />Higher cost. <br />-15° F <br />50% <br />Winter Sand /Abrasives — Winter sand is sand treated <br />with brine or another blend. It is often used as an <br />abrasive for low- temperature conditions when chemicals <br />are not effective. Sand provides temporary traction and <br />only works when it is on top of the ice. <br />Never melts— traction <br />only <br />Liquid chlorides are available with corrosion inhibitors. <br />19 <br />v <br />CD <br />a <br />ialuiM ay1 alo08 <br />wjo1s KR a1o08 <br />tams ayl6uuna <br />viols ell' JOIN <br />D <br />co <br />co <br />0-7 <br />