Recent content by cafuffu

I've done some research and i guess i could use sodium phosphate, Na3PO4 which under electrolysis i think should produce NaOH in one half cell and phosporic acid, H3PO4, in the other half cell. I could then react the phosporic acid with the sodium carbonate and it should release CO2, water and...

Well, but the Na+ does become NaOH so it can't diffuse back. Do you mean to have another electrolytic cell that produces an acid and react that with the carbonate? I don't have enough experience with this stuff, would you have an example with which i could close the loop?

Yes, i understand that CO2 is not a direct product of the electrolysis, but rather the consequence of the fact that all the carbonate ions get left in the anode half cell while the Na+ ions leave it, and if i understand it correctly carbonic acid wants to stay at equilibrium with the CO2 in the...

Are you sure about that? I found some material saying it should work: http://www.freepatentsonline.com/4337126.pdf https://pubs.rsc.org/en/content/articlelanding/2018/CC/C8CC00812D#!divAbstract (i don't have the full article). If the CO2 does not get released i think it would mean the CO3 left...

Hi all! This is my first question, i hope it does make sense :) I'm trying to find a way to isolate CO2 gas when doing electrolysis of a water solution with Na2CO3. I understand that i can do that with two half cells connected by a salt bridge, and i will get NaOH plus H2 gas in the cathode...