In the sodium hypochlorite purification process, where does the sodium carbonate in the neutralization tower come from?
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In the sodium hypochlorite purification process, an neutralization tower is used at the end to absorb the pickling substances in acetylene gas. Where does the sodium carbonate in the alkaline solution of the neutralization tower come from? Is it sodium hydroxide that absorbs carbon dioxide? So, where does carbon dioxide come from? Is it dissolved in water?
Most of the carbon dioxide is entrained in the calcium carbide.
Trapped in calcium carbide? Can you elaborate a bit?
The electrodes inside calcium carbide produce some CO2 when energized; this CO2 is trapped within the calcium carbide and is released when it is added to the generator. Additionally, during the purification of sodium hypochlorite, the reaction between sodium hypochlorite and acetylene can also produce some CO2.
Um, got it. Thank you so much