IDENTIFIKASI DAN PENETAPAN KALIUM IODAT DALAM GARAM DAPUR YANG BEREDAR DI PASAR KOTA BITUNG DENGAN METODE SPEKTROFOTOMETRI UV-VIS

Abstract

ABSTRACT
Iodine deficiency disorder can be prevented by consumption of salt which contains iodine in
to the body. Based on Indonesian National Standard (SNI), concentration of Potassium iodide
(KIO3) were 30-80 ppm. The objectives of this research were to identify and determine
concentration of potassium iodide in salt which marketed in Bitung region. Samples were 9
branded salts and 1 sample unbranded. Identification was done by Potassium cation test and
Iodide anion test. Determination of Potassium iodide were done using spectrophotometer
UV-Vis. The results shows that 9 samples contains Potassium iodide (Branded salts), and 1
sample did not contains Potassium iodide (Unbranded salt). Based on spectrophotometer
analysis, there were 5 samples comply SNI of KIO3 (31,6-77,6 ppm), 5 samples did not
comply SNI of KIO3 (2,1-28 ppm).
Keywords : Potassium iodide, iodine salt, Spectrophotometry UV-vis, Bitung