Mainly used for the exploration and production, artificial rain, airports, highways of snow, coal dust, concrete, antifreeze and (1). Used to make ... a mixer in ether alcohol.(3) Used as a snow thawing agent for snow thawing work on roads,parking lots,and airports etc ... air and fluid in refrigerating technique for air conditioning system(12) Used to prevent prtrefaction for wheat,apple,and cabbage etc; ...