[Study on the new method for spectrophotometric determination of potassium iodate in salt].
A new simple, fast and sensitive spectrophotometric method in water phase for the determination of micro amount of potassium iodate in salt was studied. The method is based on chromogenic reaction of crystal violet on I3- produced from potassium iodate reacting on KI in HCl medium and using OP as the solubility-increasing reagent. When applying the proposed method to determining potassium iodate in salt, the results obtained were in agreement with those of ultrovilet spectrophotometry.
Ma
W
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Department of Chemical Engineering, Huaihai Institute of Technology, 222005 Lianyungang.
D005421:Flavoring Agents / Q000032:analysis*; D007452:Iodates / Q000032:analysis*; D017680:Potassium Compounds / Q000032:analysis*; D017673:Sodium Chloride, Dietary / Q000032:analysis*; D013053:Spectrophotometry / Q000379:methods*
D005421:Flavoring Agents; D007452:Iodates; D017680:Potassium Compounds; D017673:Sodium Chloride, Dietary; C039693:potassium iodate