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methanoic acid,IUPAC name for formic acidformic acid
or methanoic acid
, HCO2H, a colorless, corrosive liquid with a sharp odor; it boils at 100.7°C; and solidifies at 8.4°C;. It has the lowest molecular weight and is the simplest of the carboxylic acids.
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methanoic acid[‚meth·ə′nō·ik ′as·əd]