The Preparation and Oxidative Properties of Ferrate Ion (FeO4(2-)). Studies Directed Toward Its Use as a Water Purifying Agent.

摘要

The use of FeO4(2-) in the treatment of seep-well and Missouri River water has been evaluated with respect to many variables. The addition of FeO4(2-) effectively reduced the amounts of iron,manganese,cadmium,mercury,lead,cobalt,nickel,arsenic,and boron to values less than the detectable quantities with available instrumentation. This is done with less than 50ppm of added Na2FeO4. Any excess FeO4(2-) decomposes in 15-20minutes (depending on temperature and acidity) precipitating Fe(OH)3and giving O2to the system. FeO4(2-) is also extremely toxic to many river water bacteria. The final subject reported is the synthesis of Na2FeO4by electrolyzing scrap iron.