Sodium Fluoroborate, CAS 13755-29-8, (also known as sodium hexafluoroborate or sodium fluoborate) has the formula NaBF4. Sodium Fluoroborate is used as an additive in non-ferrous foundry flux, in lubrication emulsions for rolling and forming of aluminum, as a grain refining agent for non-ferrous metals, for introduction of boron in to aluminum alloys, and for the removal of magnesium in the refining of scrap aluminum.
