Potassium fluoride,anhydrous
           Potassium fluoride,extra pure
           Potassium fluoride,Granular
           Silicon Dioxide
           Hydrofluoric acid
           Synthetic Cryolite
           Potassium Fluoaluminate
           Ammonium bifluoride
           Potassium Bifluoride
           Aluminium fluoride
           Sodium fluoride
           Potassium Fluorosilicate
           Fluorosilicic Acid
           Sodium silicofluoride
           Potassium Hydroxide Flakes
           Magnesium Fluoride
           Magnesium fluorosilicate
           Barium Fluoride
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The corrosion resistance and corrosion mechanism of the sintered porous Ni–Cu alloy in hydrofluoric acid (HF) were investigated by the immersion test, the potentiodynamic polarization and the electrochemical impedance spectroscopy (EIS) techniques. Results show that the sintered porous Ni–Cu alloy exhibits good corrosion resistance in hydrofluoric acid solution, compared with porous Ni. The corrosion rate of the sintered porous Ni–Cu is dependent upon the concentration of hydrofluoric acid solution, no passive phenomenon is found in potentiodynamic polarization curve in any concentration.

The porosity has little influence on the corrosion resistance of the sintered porous Ni–Cu alloy in hydrofluoric acid solution, which is most likely due to the homogenous pore structure and chemical composition of the material, as well as the chemical stability of the bulk alloy itself.

Hydrofluoric acid is aqueous solution of hydrogen fluoride, a colorless transparent liquid with continuity of acidic substance, and also is a highly toxic, highly corrosive substance. It has dehydration dissolution to tissue protein, can quickly cause corneal liquefaction necrosis. Now the treatment of ocular hydrofluoric acid burns nursing reported as follows.