Sodium hydroxide production
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Sodium hydroxide production
Sodium hydroxide production. Schematic diagram of the diaphragm cell method for the chlor-alkali electrolytic process to produce sodium hydroxide. Brine (26% sodium chloride, blue) is piped in at left. The use of electricity from the positive and negative electrodes (labelled) cause chlorine gas to form at the anode (left, dark green), and hydrogen gas at the cathode (right, pale green). Piped out at lower right is a mixture (pink) of sodium hydroxide (12%) and sodium chloride (14%). This is named the diaphragm method because the cathode is a series of asbestos-coated diaphragm baffles (black). Sodium hydroxide is a chemical that is widely used in the chemical industry, and chlorine and hydrogen are also important products
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Media ID 6439175
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EDITORS COMMENTS
This print showcases the process of sodium hydroxide production using the diaphragm cell method in the chlor-alkali electrolytic process. The schematic diagram beautifully illustrates each step involved in this industrial procedure. In this image, we see brine, a solution containing 26% sodium chloride represented by its blue color, being piped into the system from the left. Through the utilization of electricity generated by positive and negative electrodes (clearly labeled), chemical reactions occur at both ends. At the anode on the left side, chlorine gas forms (depicted as dark green), while hydrogen gas is produced at the cathode on the right side (shown as pale green). The lower right portion of this illustration reveals a mixture colored pink consisting of sodium hydroxide (12%) and sodium chloride (14%), which is then extracted through piping. This particular method derives its name from utilizing asbestos-coated diaphragm baffles to separate different components during electrolysis. Sodium hydroxide plays a pivotal role in various industries due to its wide range of applications. Additionally, chlorine and hydrogen are also significant products obtained through this process. This print not only captures an essential aspect of chemical engineering but also highlights how technology and scientific advancements contribute to our everyday lives.
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