Word: f2
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Dates: during 1940-1949
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...civilians even noticed when WPB clamped down on dichlorodifluoromethane (C C12 F2). Most people did not know that they 1) had ever had it, 2) needed it, 3) had lost...
...F2 is trademarked by Kinetic Chemicals Inc. as "Freon-12," and is the nontoxic, noninflammable gas that is the freezing agent in practically all electric refrigerators and air-conditioning machinery. Early this year the U.S. Army made tests, found that Freon was not only the nation's No. 1 refrigerant but also a No. 1 killer of tropical insects...