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《Geology of Anhui》 2001-01
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A TREATMENT OF EXCESS TIN CHLORIDE ADDITION IN THE DETERMINATION OF IRON BY USING POTASSIUM DICHROMATE VOLUMETRIC ANALYSIS METHOD

LI Jun;DONG Xiao-ping (Anhui Institute of Geological Experiment, Hefei 230001, China)  
The excess tin chloride addition produces black mercury precipitation and is about to seriously affect the determination of iron by using potassium chromate volumetric analysis method. Air oxidation we use without any other reagent is able to resolve the effect of mercury in the range of 8 to 12 minutes. This treatment saves more time and effort than the traditional doing "throw it away and try again". It is proved satisfactory in the assay of iron ore sample.
【CateGory Index】: O655.2
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