Hydrofluoric Acid

Detailed Product Description

Fluoride acid is aqueous solution of hydrogen fluoride gas, a colorless to pale yellow transparent liquid smoke. A pungent odor. Molecular formula: HF · H2O relative density of 1.15 ~ 1.18. Boiling point 112.2 (by weight percentage was 38.2%). Is usually commercially available concentration: about 47%, the solute mass fraction up to 35.35%. Are highly toxic. The most concentrated when the density of 1.14g/cm3, boiling point of 393.15K (120 ). With a weak acid, but when the ionization degree of concentration when compared with large, thin and the general weak electrolyte are different. Corrosion resistance of teeth, bone damage more serious. Pairs of silicon compounds has a strong corrosive. Should be stored in closed plastic bottle. Derived with the HF soluble in water. Used for engraving glass, washing the residue on the sand casting, control fermentation, electric corrosion of the semiconductor silicon wafer polishing and cleaning (with HNO3 mixed acid).