Rapid United Analysis of Si, P, Ca, Ba and Al in Silicon Aluminum Barium Calcium Alloy
WANG Jixiang
LI Lingyun
MA Fang
LI Yu
Abstract：The sample was melted with alkaline mixed flux, leached and acidified with dilute hydrochloric acid, and fixed to a constant volume. A part of solution was taken, and through optimizing the determination conditions and controlling the acidity of each elements in analysis, silicon was determined by silicon molybdenum blue photometric method, and phosphorus was determined by bismuth phosphorus molybdenum blue photometric method;then after masking the iron, aluminum and other interference elements with triethanolamine, within a pH≥12 KOH buffer system, taking calcein mixed indicator to indicate the titration end-point, the content of calcium and the total content of barium and calcium were determined by EGTA titration. Aluminum was determined by alkali precipitation separation-fluoride replacement EDTA titration method, realizing the rapid united analysis on silicon, phosphorus, calcium, barium, aluminum in the same mother solution, and the relative standard deviation were respectively less than or equal to 0.155 9%, 6.692 0%, 0.746 7%, 0.394 3%, 0.189 4%.
Keywords：Si-Al-Ba-Ca series alloySiPCaBaAlspectrophotometrytitration
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 50-52 )