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Tetsu to hagane
A new method for chemical state analysis of sulfur in blast-furnace slags has been developed. The outline of the procedure is as follows. A slag sample was powdered with a neutral solution containing zinc acetate for 10 min in a disk mill in order to prepare a suspension of fine slag particles without air oxidation. The suspension was filtered and then the zinc sulfide on the filter was dissolved with acetic acid and standard iodine solution. Then, excess iodine was titrated with standarddoi:10.2355/tetsutohagane1955.72.9_1287 fatcat:7qr6eimarncivjgl2gfc47zbna