Determination of FeO, Fe2O3 and TiO2 in Basic Slag
Study on chemical analysis of basic slag-II
1959 Volume 45 Issue 8 Pages 808-812
Details
1959 Volume 45 Issue 8 Pages 808-812
This investigation was undertaken to find rapid and accurate chemical methods for the analysis of basic slag. In the report (II), a simple spectrophotometric or volumetric methods is described for determination of FeO, Fe2O3 and TiO2 which are contained in basic slag.
Determination of Fe2O3: Dissolve the sample with HCl, and dilute to about 100ml. with water. Adjust to pH 2.0 with ammonium acetate, and titrate with EDTA using salicylic acid as an indicator. Determination of FeO: In the same solution, add NH4S2O8. Mix and titrate with EDTA.
Determination of TiO2: A simple and selective procedure has been developed for the spectro photometric determination of TiO2 in the presence of other metals by using EDTA and salicylic acid.
The reaction between Ti and salicylic acid at pH 4-5 to produce the yellow colored-complex was chosen for application. At pH 4-5 Mo, Nb, Th, Mn, Al, Pb, Ca and Mg do not interfere. Fe, Cu, Cr and V may be masked by the addition of EDTA.
