UNI 3894-1957 Procedures for the chemical analysis of minerals. Determination of the total iron content of chrome minerals. Volumetric method by means of disaggregation with sodium peroxide.
After disintegration of the mineral with sodium peroxide, the iron hydrate is separated by double precipitation, the hydrate is dissolved in hydrochloric acid and the iron is determined by titration with sanoc chloride and potassium permanganate. Solutions and reagents. Method. Try it blank. Calculation.
UNI 3894-1957 history
1957UNI 3894-1957 Procedures for the chemical analysis of minerals. Determination of the total iron content of chrome minerals. Volumetric method by means of disaggregation with sodium peroxide.