Composite Deiceing Agents with High Efficiency and Corrosion Resistance

Composite deiceing agents of various chlorides were prepared through simplex barycenter design,based on freezing point reduction theory.There was synergic effect on anti-corrosion behavior between sodium dihydrogen phosphate,sodium gluconate,zinc sulphate,thiourea,sodium silicate,sodium molybdate and sodium tungstate.The test results of ice-melting corrosion,concrete corrosion,freezing point,and the salinity tolerance of plants showed that the PSA series deiceing agents had low freezing points and no damage to metal,concrete and plants.They are highly effective and environmental friendly．