Electrolysis of Brine

Chlorine will be produced as a byproduct of your process, and it can corrode a steel tank. FRP would be safer. Also, you are passing DC electricity through salt water in a metal container, so electrocution is a real possibility. To minimize fire risks caused by accumulated hydrogen gas, locate your reactor in a well-ventilated area. Finally, it is normal for electrolysis to heat up the water.

I hope this answers all your questions adequately.

Thanks for the feedback...it does help in my planning.

Regards

Take the chlorine-bit seriously!!! You could wind up with chlorine gas or a yellow, floating chlorine compound that really hurt when I said "I wonder what this stuff is?" and touched it.

What exactly is the application? I have had a look at your linked website ( http://www.chemstreet.com/?go=home ), but am unsure if this question is related to your work in hygiene or chemical production.

Is this an enquire regarding use of electrolysis for extraction of some compound or gas out of sea water (like sodium chloride), use of electrolysis for water purification or use of electrolysis for hydrogen extraction for energy generation.

I would rather get more information about what you are trying to achieve before I comment further.

The website is my company website. My intentions are in the production initially at scale model level for sodium hypochlorite. I know there are several methods but I think electrolysis would be much better as I can re-use the sodium chloride formed during reaction between chlorine gas and sodium hydroxide and pump it back in phase 1.

I have worked out the mechanism but need help/info on designing the actual reactor set up. I will be initially setting up a model version and see feasibility/output/energy consumption etc.

The hydrogen gas would be simply expelled. It won't be used for energy generation, however would love to harness the hydrogen gas in future as well.

Thanks and looking forward to more feedbacks.

I must say that this site is great....Where is it located???NZ, USA ??

The voltages to be used in electrolysis are in the "extra low voltage" region, and electrocution shouldn't be a worry. If one is at all worried, then a voltage source that is galvanically isolated from the supply mains would work well.

Sodium hypochlorite is produced at point-of-use electrolytically using commercially-available equipment world-wide already.

Any fire worries with the hydrogen gas bubbles are minimal; once it finds a free surface, hydrogen is quick to dissipate, and goes straight upwards.

Guys I tried the process but am a bit stuck....I added salt in the water and passed current through it...It did form chlorine gas and once I shaked the solution then it turned yellow...it didnt had the sodium hypochlorite smell and i also tried to bleach a little piece of cloth but nothing happened....where am i going wrong guys?

Also it formed a yellow precipitate like powder.....I am a bit confused....

What are your electrodes made of?

the electrodes are just normal copper wire....could that be the problem???

Try platinum. You're probably going to get copper chloride or something.

Thanks. I think you probably right but maybe its copper hydroxide.....

Copper hydroxide is green and nonwater soluble.

The domestic swimming pool industry produces a lot of equipment that does this. Search for "salt water pool chlorinator" - there are loads of them, The plates are usually coated with Titanium.

thanks dude

This is being used by almost all caustic Chlorine industries where Electrolysis of brine is done. You can visit such caustic Chlorine industries.

If you want to learn about how a membrane technology caustic Chlorine plant works, please mail to bhupendra.bhatt@kanoriachem.com.