Кислота серная и олеум технические. Определение содержания диоксида серы. Йодометрический метод
Название (англ.):
Sulphuric acid and oleums for industrial use; Determination of sulphur dioxide content; Iodometric method
Описание (англ.):
Applicable of products the SO2 content of which is equal to or more than 2 mg/kg. Based on the displacement of the sulphur dioxide present in the test portion by a current of pure nitrogen and absorption in a known volume of iodine solution. Titration of the excess of iodine with standard volumetric sodium thiosulphate solution. The diagram of the glass apparatus for absorption is shown in a figure.
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING DETERMINATION OF CONTENT IODOMETRY OLEUM SULPHUR DIOXIDE SULPHURIC ACID VOLUMETRIC ANALYSIS CHEMICAL ANALYSIS AND TESTIN