How is chlorine manufactured by electrolytic process?
Chlorine can be manufactured by the electrolysis of a sodium chloride solution (brine), which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda (sodium hydroxide, NaOH) and hydrogen gas (H 2 ). Chlorine is obtained as a byproduct during manufacture of NaOH.
Which process is used for production of caustic soda?
Caustic soda (usually as NaOH) is produced as a liquid. These are produced by passing an electrical current through brine (common salt dissolved in water). This is called electrolysis, a process which has been known for over 120 years.
How is NaOH formed by electrolysis?
Electrolysis of sodium chloride solution (brine) During the electrolysis, hydrogen and chloride ions are removed from solution whereas sodium and hydroxide ions are left behind in solution. This means that sodium hydroxide is also formed during the electrolysis of sodium chloride solution.
In which electrolysis are chlorine hydrogen and sodium hydroxide is produced?
Electrolysis of concentrated sodium chloride solutions (brine) produces chlorine gas, hydrogen gas and aqueous sodium hydroxide.
How is chlorine manufactured by electrolytic process describe any two uses of chlorine?
Answer: Chlorine can be manufactured by the electrolysis of a sodium chloride solution (brine), which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda (sodium hydroxide, NaOH) and hydrogen gas (H2). …
How is chlorine manufactured by Deacon’s process?
1 Answer. In Deacon’s process, chlorine is manufactured by oxidising hydrogen chloride gas by atmospheric oxygen in the presence of CuCl2 as a catalyst at 723 K.
Which process is used to manufacture chlorine?
Most chlorine is manufactured electrolytically by the diaphragm, membrane, or mercury cell process. In each process, a salt solution (sodium or potassium chloride) is electrolyzed by the action of direct electric current which converts chloride ions to elemental chlorine.
How is chlorine obtained?
Chlorine can be manufactured by the electrolysis of a sodium chloride solution (brine), which is known as the Chloralkali process. The production of chlorine results in the co-products caustic soda (sodium hydroxide, NaOH) and hydrogen gas (H2). These two products, as well as chlorine itself, are highly reactive.
What is the electrolysis of brine?
The electrolysis of brine is a large-scale process used to manufacture chlorine from salt. Two other useful chemicals are obtained during the process, sodium hydroxide (NaOH) and hydrogen (H2).
Why is chlorine produced in the electrolysis of brine?
The electrolysis of brine separates the salt water solution through a porous membrane resulting in the negative anode drawing the positively charged chlorine ions to it while the positive cathode collects the negatively charged hydrogen ions found in the water.
How does sodium chloride produce chlorine electrolysis?
When an electric current is passed through concentrated sodium chloride solution, hydrogen gas forms at the negative electrode , chlorine gas forms at the positive electrode, and a solution of sodium hydroxide also forms.
What is the basic principle involved in the electrolysis of brine?
In a brine electrolysis cell, electricity is used to produce chlorine at the anode and reduce water into hydrogen at the cathode.
What is electrolytic process of chlorine and caustic soda?
ELECTROLYTIC PROCESSES FOR CHLORINE AND CAUSTIC SODA. By passing a current of electricity through a sodium chloride solution the salt is decomposed into chlorine at the anode and sodium at the cathode. But the latter at once decomposes a molecule of water of the solution, forming caustic soda and setting free hydrogen.
What are the electrolytic processes used to produce chlorine?
Competitive Manufacturing 11 Process • There are 3 types of electrolytic processes used in the production of chlorine: (1) The diaphragm cell process (2) The mercury cell process (3) The membrane cell process • A salt solution is electrolyzed by the action of direct electric current that converts chloride ions to elemental chlorine.
What are the co-products of caustic soda production?
The production of caustic soda (NaOH) also results in the co-products of chlorine and hydrogen. In the membrane process, a solution of approximately 30% in strength is formed.
How does the diaphragm prevent the reaction of caustic soda with chlorine?
• The diaphragm prevents the reaction of the caustic soda with the chlorine. • A diluted caustic brine leaves the cell. • The caustic soda must usually be concentrated to 50% and the salt removed. This is done using an evaporative process.