... 0.01Chloride, % ≤0.005Sulfate, % ≤0.03Main usage:Fluoroboric acid is a catalyst for aldehyde synthesis, a metal surface cleaner, a polish ... clean metal surface or before alloy electroplate. Fluoroboric acid is one component of preservatives for deactivating aluminum ... salt stabilizer and various fluoborate, alkylation and polymerization catalyst, a cleaner and corrodent of metal surface oxide, ...