United Fast Analysis of the Silicon, Phosphorus, Aluminum and Manganese in Silicon Manganese Aluminium Iron Alloy
ZHANG Han
LI Lingyun
MA Fang
Abstract：The samples were melted at high temperature with alkaline flux, leached using dilute hydrochloric acid, after acidification and reduction of the manganese, the volume can be keep constant. A part of the test liquid is removed, the interference elements can be separated by optimizing and controlling the measure acidity and precipitation. The silicon and phosphorus are determined by molybdenum blue photometric method respectively, and the aluminum was determined by EDTA titration. Using nitric acid and a small amount of hydrofluoric acid to dissolve the sample, in a large number of the presence of phosphate, the manganese can be determined by the ammonium ferrous sulfate standard solution titration using the perchloric acid to oxidize the Mn2+to Mn3+, using N-phenyl anthranilic acid as the indicator. The results showed that the method has the advantages of simple operation, fastly;the RSDS≤2.38%and can meet the needs of steelmaking production.
Keywords：silicon manganese aluminum iron alloySiPAlMnphotometrytitration
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 49-51 )