The Compatibilty Of Materials With Chlorine Trifluoride, Perchloryl, Flouride and Mixtures Of These

Abstract:
Compatibility and corrosion rates of alloys of aluminum, copper, magnesium, nickel, titanium, steel and stainless steel, and columbium, molybdenum, carbon, graphite and fluorocarbon plastics in chlorine trifluoride, perchloryl fluoride and mixtures of these at 30°C. were investigated. Titanium, columbium, molybdenum, carbon and graphite were rapidly attacked in ClF₃. Corrosion rates of others were extremely low in all liquids. In the vapors, instances of higher corrosion rates were noted. Teflon and Kel-F adsorbed moderate amounts of ClF₃ and ClO₃F. Passivation by ClF₃ was unnecessary for reducing corrosion of properly cleaned metals. Corrosion in wet ClO₃F was characterized by localized attack, but some stainless steels were resistant. Titanium exhibited increasing impact ignition in liquid ClO₃F beginning at 19 ft.-lbs., but even at 140ft.-lbs. burning was not sustained. No other metals showed impact ignition in ClF₃ or ClO₃F. In explosive shock tests, ClO₃F gave a stronger interaction with the metals tested than did ClF₃, and aluminum showed a greater interaction with the fluorine chemicals than low carbon or stainless steel. Greatest enhancement of explosive shock occurred with titanium and ClO₃F. In explosive denting and perforation of steel and aluminum cylinders containing ClF₃, ClO₃F and their mixtures, no enhancement occurred. A high order explosive interaction occurred between ClO₃F and titanium cylinders perforated by a shaped explosive charge.