2023年8月27日 · When melted at high temperatures, sodium chloride splits into sodium and chloride ions, allowing electrolysis to produce sodium atoms and chlorine gas. At the cathode, 2Na + (l) + e – are reduced to Na (l).

Sodium chloride electrolysis in an aqueous solution yields different products depending on the relative concentration of sodium chloride and water. The electrolysis is thermodynamically controlled at very low and high concentrations of sodium chloride and kinetically controlled at inter-mediatory concentrations.

2022年10月27日 · The Electrolysis of Molten Sodium Chloride. In molten sodium chloride, the ions are free to migrate to the electrodes of an electrolytic cell. A simplified diagram of the cell commercially used to produce sodium metal and chlorine gas is shown in Figure \(\PageIndex{1}\).

Most bulky chemicals with industrial use, like sodium hydroxide and chlorine, are produced by a crucial process called sodium chloride electrolysis. Sodium chloride can be electrolysed in both aqueous and molten forms. Additionally, other salts are present during electrolysis to facilitate the redox reactions. Image: Components of electrolysis.

2024年3月27日 · The electrolyte is concentrated sodium chloride which contains the following ions: Na + H + Cl – OH – Reaction at the Negative Electrode: The H + ions are discharged at the cathode as hydrogen is less reactive than sodium . The H + ions gain electrons to form hydrogen gas 2H + + 2e – → H 2. Reaction at the Positive Electrode:

The Electrolysis of Aqueous NaCl . The figure below shows an idealized drawing of a cell in which an aqueous solution of sodium chloride is electrolyzed. Once again, the Na + ions migrate toward the negative electrode and the Cl-ions migrate toward the positive electrode.

Metallic sodium, Na, and chlorine gas, Cl 2, are used in numerous applications, and their industrial production relies on the large-scale electrolysis of molten sodium chloride, NaCl(l). The industrial process typically uses a Downs cell similar to the simplified illustration shown below.

2023年8月26日 · To illustrate the essential concepts of electrolysis, a few specific processes will be considered. Metallic sodium, Na, and chlorine gas, Cl 2, are used in numerous applications, and their industrial production relies on the large-scale …

We will begin the explanation of the chlor-alkali process by determining the reactions that occur during the electrolysis of NaCl. Because NaCl is in an aqueous solution, we also have to consider the electrolysis of water at both the anode and the cathode. Therefore, there are two possible reduction equations and two possible oxidation reactions.

When aqueous solutions of ionic compounds are electrolyzed, the anode and cathode half-reactions may involve the electrolysis of either water species (H 2 O, H +, OH –) or solute species (the cations and anions of the compound). As an example, the electrolysis of aqueous sodium chloride could involve either of these two anode reactions: