Bismuth analysis method contained in bismuth-manganese (Bi-Mn) alloy material

摘要

The present invention relates to a method for analyzing bismuth (Bi) contained in a bismuth-manganese (Bi-Mn) alloy material, the object of which is contained in the bismuth-manganese (Bi-Mn) alloy material by titration analysis method To provide a bismuth analysis method.;The present invention for achieving the above object is a basis weight of the bismuth-manganese alloy sample to 0.05g or more, and after adding 6ml or more nitric acid to it, and then cooled by heating for 5-10 minutes at a temperature of 60 ℃ or more, and then After adjusting the pH to 1-2, aliquot, add xylenol orange, titrate with EDTA standard solution, and adjust bismuth concentration to the amount of standard solution added to the end point where the sample solution discolors. The technical gist of the bismuth analysis method contained in the bismuth-manganese (Bi-Mn) alloy material including the calculated | required thing is made into the technical summary.