Determination of Fe( Ⅱ) and Fe(Ⅲ) in Feeding Ferrous Sulfate with Titanium Trichloride and Kalium Dichromicum

A method for the determination of Fe( Ⅱ) and Fe(Ⅲ) in feeding ferrous sulfate was established. The influencing factors were discussed. Recoveries of the Fe( Ⅱ) and Fe(Ⅲ) were proved to be 98%-102% in spiked samples. This method is reliable and practicable to determine Fe( Ⅱ) and Fe(Ⅲ) in ferrous sulfate.