UNI 3658-1955 Procedures for chemical analysis of minerals. Determination of titanium in iron ore. Photometric and colorimetric methods for disaggregation with sodium peroxide.
The sample is disrupted with sodium peroxide; the melted mass is leached with water and filtered. The hydrates are dissolved in nitric acid and, in the solution treated with hydrogen peroxide, the titanium is dosed photometrically or colorimetrically. Solutions and reagents. Procedures: photometric determination and calculation; colorimetric determination and calculation.
UNI 3658-1955 history
1955UNI 3658-1955 Procedures for chemical analysis of minerals. Determination of titanium in iron ore. Photometric and colorimetric methods for disaggregation with sodium peroxide.