Wondering What is Chloro Alkali Process? The chloro alkali process is an industrial chemical process that involves the electrolysis of saltwater (brine) to produce three important chemicals: chlorine gas (Cl2), sodium hydroxide (NaOH), and hydrogen gas (H2). This process plays a crucial role in various industries.
The process takes place in an electrolytic cell, typically divided into two compartments by a diaphragm or a membrane. In one compartment, known as the anode compartment, chloride ions (Cl-) are oxidized at the anode, resulting in the release of chlorine gas. In the other compartment, known as the cathode compartment, water molecules are reduced at the cathode, leading to the formation of hydrogen gas and hydroxide ions (OH-).
The hydroxide ions combine with sodium ions (Na+) present in the brine to form sodium hydroxide, which is a strong alkaline compound commonly known as caustic soda. The chlorine gas produced in the process is highly reactive and finds applications in the production of a wide range of chemicals, including PVC, disinfectants, and solvents.
The chloro alkali process has a significant environmental impact due to the production of chlorine gas, which is a hazardous substance. Efforts have been made to minimize the release of chlorine gas into the environment through improved technologies and safety measures.