... : stimulus odor Specifications Index 1-grade 2-grade Appearance(Pt-Co liquid) 10 20 Content 90.0 85.0 Chloride (Cl ... remover, bakelite, pickled plate, etc.(4) Leather Industry: Leather tanning agent, deliming agent, and neutralizer.(5) Rubber Industry: Natural rubber polycoagulant.(6) Other: Formic ... agent, foodantistaling agent, animal fodder additive, etc. FORMIC ACID for leather industry