Sodium formate is mainly used to produce tannery, formic acid, oxalic acid and sodium hydrosulfite. By product, so it is cheap ... formate has slight hygroscope ; and slight smell of methanoic acid is easy dissolved in water,slightly dissolved in ethanol;out ... Uses: Sodium formate is mainly used to produce tannery, formic acid, oxalic acid and sodium hydrosulfite, used in the the preparation of ...