... sodium formate and synthetic sodium formate to produce formic acid.1,Application fields of formic acid:a, pharmaceutical industry: Caffeine,Enzinnes,Aminopyrine,Vitamine ... in our products, pls let us know. Specification of formic acid: ItemTop GradeFirst GradeQualified GradePurity%,≥908585Chroma(Pt-Co)≤1020 Dilution ... .00050.0010Residue on evaporation,%, ≤0.0060.0200.080 Formic acid 85% manufacturer