Simple Method To Identify Iodine Content From 2 Kind Of Table Salt Using Cassava Juice And Study The Potency Of Their Solution As Alternative Energy Source

Abstract

Table salt was known as sodium chloride (NaCl) compound was found useful in human life since contain mineral and some additional micronutrient such as Iodine. However not all tables salt is iodized. Besides, when salt dissolved in water, they are able to conduct electricity makes it potential as an alternative energy source. Meanwhile, its not well known how much the concentration of salt is needed to produce an electric current. The purpose of this study is to present a simple methode in testing iodine content qualitatively in salt using cassava juice and their correlation on electrical current which could be generated when this salt in form of solution. The iodine content was testing throught with various amount of cassava juice namely, 10, 20 and 30 grams with 20 grams of salt. The result clearly indicated that the color of mixture cassava juice and salt slowly changed into dark colour after dripped with 10 gram of cassava juice. In other words, the amount of salt must be greater than quantity of cassava juice since the iodine content in salt is very little, around 30 ppm. Meanwhile in order to generated electrical current, we use two electrode plates namely a copper plate as a positive electrode and a Zinc Plate as a negative electrode. Both plates are immersed in a glass filled with salt solution water and arranged in series circuit. This study was conducted with various mass of salt namely 20, 30, 40, 50 and 60 grams and dissolved into 190 mL of waters. Furthermore, the electrical characteristic of salt solution was also investigated with various electrode distance namley 1, 2, 3 and 5 cm, repectively. The measurement result indicated that the amount of salt is proposional to their electrical characteristic. Meanwhile, the distance of the electrodes conversely proportional with to electrical characteristic. The greater the distance of the electrodes resulting smaller value of their resulting electrical current and voltage. No significant difference electrical characteristic between sea salt and branded table salt.