C ombined D etermination of C hromium and V anadium in M anganese O re by P hotometry
LI Qingxia
LIUYan
JIANG Hongjiao
Abstract：The manganese ore was melted by sodium dioxide- sodium carbonate, extracted with hot water and filtered. A part of the filtrate from the same kind of mother liquor was taken into a volumetric flask. In the acidic medium, the contents of Cr and V were determined by photometry. Sulfuric acid (1+1) content selected by test is 2 mL, the phosphoric acid is 3 mL and the stable times are 10 min for Cr and 30 min for V. This method is simple for operator, the value of determination is accordant with the value of standard, the RSD (n=8)≤4.98%for Cr and≤4.87%for V and the result of determination is not affected by other components in manganese ore.
Keywords：manganese orechromiumvanadiumphotometry
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：2( 40-41 )