Hydrofluoric acid (HF) is an extremely powerful inorganic acid and a vigorous dehydrating agent. Anhydrous hydrofluoric acid and hydrofluoric acid in aqueous solutions range in appearance from colorless to slightly tinted.

• 氢氟酸是一种极强的无机酸和强脱水剂。无水氢氟酸和氢氟酸的水溶液的外观在无色到淡颜色之间变化。