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Picture of HHO generator
An HHO or Brown gas generator is an interesting and often misunderstood technology.
The Brown gas generator uses electrolysis to split water (H2O) into it´s base molecules, 2 hydrogen and 1 oxygen molecule.
This is why it is often referred to as an HHO gas generator.

Step 1: Stuff you'll need

Picture of Stuff you'll need
An empty cup
Dc 5v power supply (You can also use batteries)
Salt
Glue gun
Two plated nails 
Two rubber washers 
Cardboard strip
Stripped copper wires
Led light
 
waldosan2 years ago
kiteman's right, oxygen cannot exist for any extended period of time as a single molecule because it's so volatile. in fact the actual chemical formula for water isn't h20 it's h4o2 hydrogen four oxygen 2 because what your doing is making two water molecules for every single reaction.

i've done this before, though your setup is nice and simple; the brown-ness of your gas and later water is due to your electrodes being made of iron or steel. the fun thing is if you use copper electrodes then the water turns blue as the copper breaks down and becomes suspended. i don't think it's related to copper sulfate, though it has the same blue color as copper sulfate.

as for the whole HHO theory, it's bunk through and through, in order to get HHHHO2 you need to dump into the reaction a certain amount of energy that is always going to be more than what HHO will generate. this is like one of the laws of thermodynamics, any process cannot create energy, tearing water apart and putting it back together isn't going to net you any free energy, you'll lose energy to heat, friction, and hysteris in the electric part of your system. though in the future if we ever get good at hydrogen storage it might become feasible to use this method as a way to move our energy to where we want it, namely our cars and motorcycles and things that go vroom!

i found that the best way to capture the gas is with something like a two liter bottle that's turned upside down, you cut holes in it's neck putting one electrode inside the bottle with wire that still has it's rubber coating, only striping it at the point that is inside the bottle. then using radioshack wire just wrap wire around the opening leaving some space for water to flow. i did this once with a sobe bottle while living in an apartment, bad place to do it but i got a nice bang when the hydrogen lit.
Shakeabletax (author)  waldosan2 years ago
I've tried this in a conseled container with some copper rods. Is the copper has made the water blue. Is the copper a better metal to use then the steel?

no stainless steel or graphite works best add more steel than in this experiment sand the steel too

Kiteman2 years ago
An HHO or Brown gas generator is an interesting and often misunderstood technology.
The Brown gas generator uses electrolysis to split water (H2O) into it´s base molecules, 2 hydrogen and 1 oxygen molecule.
This is why it is often referred to as an HHO gas generator.


A few factual points.

So-called "Brown's gas" or "HHO" generators are fake. According to their advocates, they somehow use electricity in a special way to produce single-atom molecules of hydrogen and oxygen. This is the source of the name "HHO". They claim these molecules can burn to produce more energy than "normal" H2 and O2. They also claim the flame will burn hit enough to burn through steel, yet not burn human skin.

What you have made is a perfectly normal electrolysis unit (although the safety aspects is a little suspect), producing normal H2 and O2 at the electrodes.

Safety notes:

You are connecting water to the main supply. Be careful not to hurt yourself.

Fun note:

Try adding a lid to the unit, with a tube in the lid.

Use the tube to send the mixture of gasses into another pot, thus time with very soapy water in it.

After a few minutes, or when you have a pile of bubbles, use a match on a long stick to light the bubbles.

;-)

Shakeabletax (author)  Kiteman2 years ago
I'm going to try the water with soap, But outside! And thanks for the comment! :D
Take video, and add it as a final step!