Cryotech NAAC® (97 percent anhydrous sodium acetate) solid runway deicer has a low corrosion rate, is readily biodegradable, and works to low temperatures — down to 0°F (-18°F). It is exothermic, giving off heat while it melts, making NAAC® a high-performance deicer. Cryotech NAAC® meets all FAA specifications for airside use. For more information, visit our website at www.cryotech.com.