Abstract − Analytical Sciences, 20(3), 543 (2004).
What is the Weighing Form in Gravimetric Determination of Antimony(III) with Oxine ?
Akiharu HIOKI
National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 3-10, 1-1-1, Umezono, Tsukuba-shi, Ibaraki 305-8563, Japan
The gravimetric analysis of antimony(III) with oxine (8-quinolinol, Hox) was studied. The amount of antimony left in filtrate and washing solutions was corrected with the results of atomic absorption spectrometry. The weighing form, which had not been conclusive before the present study, was determined to be SbO(ox)(Hox)2. The result (purity of antimony(III) oxide: 99.84 ± 0.05% (m/m)) of the gravimetric analysis was in good agreement with that of coulometric titration with electrogenerated iodine.
J-STAGE:
View this article in J-STAGE
Back to the Table of Contents
