Initially I was sceptical about this device since it shares a common appearance to the "hydrogen water enrichers". But in reality this odd USB spray bottle does actually make sodium hypochlorite sanitiser from plain tap water and salt using a process called electrochlorination.
And it works really well. The water stinks of chlorine afterwards and an ill advised taste test gave a strong salt and chlorine taste. When it was poured into tea/coffee stained mugs it had a profound cleaning effect when left for a while.
Here's a link to the Wikipedia article about the technology:-
https://en.wikipedia.org/wiki/Electrochlorination
If I sounded a bit perplexed at their current regulation circuitry, it's because it didn't make sense. It looks like it should be a simple current regulator for this application to give good control over the concentration of the chlorine versus time, but a further test with a meter shorting out the electrode plates showed a very high current instead of a fixed regulated level.
Other than the use of what is effectively a voltage regulator for controlling the current, the rest of the circuitry is exactly what you might expect.
The most important thing to take away from this video is that in the event of emergency you can create hospital grade water and surface sanitiser from table salt, water and improvised electrodes.
Now I'm wondering if the real purpose of the earlier water hydrogen enricher was a self sterilising water container that created low level sterilants.
I'd love to know what they're using as the electrodes. I'm leaning towards a very stable stainless steel alloy as used in some hydrogen/oxygen generators.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
And it works really well. The water stinks of chlorine afterwards and an ill advised taste test gave a strong salt and chlorine taste. When it was poured into tea/coffee stained mugs it had a profound cleaning effect when left for a while.
Here's a link to the Wikipedia article about the technology:-
https://en.wikipedia.org/wiki/Electrochlorination
If I sounded a bit perplexed at their current regulation circuitry, it's because it didn't make sense. It looks like it should be a simple current regulator for this application to give good control over the concentration of the chlorine versus time, but a further test with a meter shorting out the electrode plates showed a very high current instead of a fixed regulated level.
Other than the use of what is effectively a voltage regulator for controlling the current, the rest of the circuitry is exactly what you might expect.
The most important thing to take away from this video is that in the event of emergency you can create hospital grade water and surface sanitiser from table salt, water and improvised electrodes.
Now I'm wondering if the real purpose of the earlier water hydrogen enricher was a self sterilising water container that created low level sterilants.
I'd love to know what they're using as the electrodes. I'm leaning towards a very stable stainless steel alloy as used in some hydrogen/oxygen generators.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Thi s is probably a stupid question, but I keep trying to find it these make hypoclourous acid or hypoclorite?
Did you like this?
How different is this to a normal spray bottle containing really dilute bleach? Is the pH lower?
Or just buy bleach 🙂
I tried capturing the gas produced, as I have the same unit at home. I was surprised that the gas wouldn't burn at all when I applied a lighter flame. Not even an invisible flame, or it would have melted the thin clear vegetable bag that I'd used for capturing the gas. This got me worried that it may be releasing chlorine gas instead of hydrogen gas.
It is important not to use iodized salt…
Electrodes Should be titanium coated with an inert metal as to not react in the electrolysis (contaminate the solution). Chlorine bubbles react with water to form hypochlorous acid. This is how cities chlorinate water but this makes a strong solution that is more potent than chlorine bleach.
We have a salt water chlorinator for our pool. The cell electrodes are titanium, if you used stainless steel then the water would contain a lot of iron ions. I think that aluminium electrodes would ionise away too fast!
😎😎😎😎😎
Could you put Potassium chloride in it?
Even more salt!
Honestly during the peak of COVID-19 this would've made table salt even harder to find 😂
Ah, I see, a spray bottle for preppers
I see they now have a 4liter model on ebay (sans spray top).
The bubbles are hydrogen but also chlorine gas very very dangerous, you know one of the gases used in ww1 to poison the other side. Typical Chinese dangerous product. Just do it outside