... .81.0 ItemsDataHydrofluoric, HF% ≥70.0Fluosilicic Acid, H2SiF6% ≤0.05Non-volatile Acid, H2SO4% ≤ 0.08Usage:Hydrofluoric acid plays an important role in purifying ... oxygen containing impurity from the surface of stainless steel. Hydrofluoric acid is also used to synthetize various fluorine containing organics, such ... drum, 1MT/Drum or as client’s request 40% Hydrofluoric acid with best price