THE INFLUENCE OF ELECTROLYTE ION SIZE TO THE HYDROGEN GAS PRODUCTION ON THE ELECTROLYSIS OF SALT CHLORIDE SOLUTION

• Main Author: (NIM: 20507038); Pembimbing: Dr. Eng. M. Ali Zulfikar, KASTONO
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/13012
• Institution: Institut Teknologi Bandung

Electrolysis of water is so important in describing the reactions that occurs on the cathode and anode, but the electrolysis of pure water will so difficult or will not occur, if there is not ion enough to bring on electric current. To make the electrolysis occur so easy, it is usually added the electrolyte substance, such as acid (H2SO4), base (NaOH) and salt (Na2SO4). In this research, it is conducted ectrolysis to the water, by using of electrolyte salt chloride alkali sources (LiCl, NaCl, KCl) and chloride alkali earth sources (MgCl2.6H2O, CaCl2.2H2O, BaCl2.2H2O). The electrolysis of water that used salt chloride as the electrolyte source (than called as salt chloride solution) will produce hydrogen gas at the cathode and oxygen or chlorine gas on anode. The differences ion electrolyte that added to water in the electrolysis process will also give the differences results. This research are aimed to answer the problems, such as: how the influence of voltage, the concentration of salt chloride solution and the electrolyte ion size to the hydrogen gas production on the electrolysis salt chloride solution. Electrolysis done by using Hoffman electrolysis cell. Gas identification that obtained in anode are conducted by flow of gas and the remaining electrolysis to KI 10% solution. From this research, it is obtained that: the greater the voltage that used or applied so it is more hydrogen gas that produced, the greater the concentration of chloride salt that used so it is more hydrogen gas that produced, and the greater ion (cation) electrolyte size, so the hydrogen gas that produced greater (except for kation Ca2+). <br /> <br />