Electrochemical potentiodynamic polarization studies have been carried out for a variety of ferrous and nonferrous metals in methylphosphonic difluoride. Studies of the effect of organic inhibitors on the corrosion rate of 1020 steel, 316 and 304 stainless steel and magnesium in methylphosphonic difluoride were also carried out. In addition, electrochemical studies were conducted in Decon solutions of sodium carbonate, DS2, and STB. General corrosion rates are reported for ferrous alloys, ...