... & transparent liquid2. Formic Acid 90% Applications FORMIC ACID FEED GRADE :1 Pharmaceutical industryCaffeine, Analgin, Aminopyrine, Vitamin B1, ... 7 Steel industryAcid cleaning of steel production, etc. 8 Paper industry Pulp manufacturing, etc. 9 Food industry Disinfectant, ... etc. 3. Formic Acid 90% Specifications FORMIC ACID FEED GRADE : Item; First grade Second gradePurity:90min85minChroma(platinum- ...