... Fe ),%≤0.0005≤0.0001Usage: Formic acid is a kind of basic material in organic chemicals. It is widely used in ... ointments. It is also an important material for the production of Metamizole Sodium, Metronidazole, caffeine, aminophenazonum, borneol and vitamine B1. In pesticides ... used to produce ammonium formate, N,N-dimethyl formamide, kinds of formate brines, anti-aging agent and so on. In rubber ...