It is mainly used in the production of formic acid, oxalic acid, sodium hydrosulphite, formamide, leather industry and oil fiel Item index ... gradeHigh-class productFirst-class productAppearanceWhite crystallineWhite crystallineSodium formate content (by ... %, ≤0.51.0Content of Fe (by butt), %, ≤0.050.05 Sodium Formate