@Hip I read the post and saw the video. But did I miss where the amounts of ingredients are
If you are using my old method of a rod of magnesium metal placed in a test tube containing a solution of citric acid in water, then you use 3 grams of citric acid powder. Or you can just fill the test tube with vinegar instead of citric acid and water.
Magnesium rods of 99.99% purity you can buy on
eBay.
But I've got a new method of creating hydrogen rich water now which uses
magnesium shavings (tiny grains of magnesium) rather than a magnesium rod.
Magnesium shavings create a faster reaction when mixed with the acid (due to more surface area of magnesium, compared to a rod), and this means you can make a bottle of hydrogen rich water in just 5 minutes. With the magnesium rod the reaction is slower, taking about 45 minutes to create enough H2 gas.
So I will explain this new method here, as I think it is better. Though the general concept is the same as old method shown in
my video.
If you search eBay for
magnesium shavings or
magnesium turnings, you may find these small grains of magnesium for sale. They are also to be found on the
UK eBay.
You want shavings which are quite small if possible, about the size of sugar grains — ie, about 0.5 to 1 mm in size, which corresponds to powder mesh size 35 to 18. You can also search for
magnesium powder mesh 20, or mesh 25 for example.
These magnesium shavings will react quite fast with the acid, but not too fast. If the shavings are a little larger than sugar grains, then the reaction will be a bit slower, but it's still OK.
This is what 1 mm (18 mesh) magnesium shavings looks like:
You should be able to buy 100 grams of such magnesium shavings for about $10.
I also tried fine magnesium powder, which has an even higher surface area, but with this the reaction with citric is far too fast, it almost explodes and gets very hot.
Citric acid powder you can buy at many places pretty cheaply, for example
Amazon. As a substitute, you can instead use vinegar if you like. And malic acid powder (used in beer brewing) also works.
To make a bottle of hydrogen rich water, you measure out around 500 mg of the magnesium shavings, and add to 3 grams of citric acid powder in a test tube. Shake the test tube to mix the powders, and then add two-thirds full with water, and then put in the test tube stopper (which must have a tiny pin hole in it to let the H2 gas out). As soon as you put the water in the test tube, the magnesium and citric acid will start reacting.
Then drop the test tube into a 1 liter plastic soda bottle (like a Coca-Cola bottle) which is filled to the very top with water, and close the bottle tight. In about 5 minutes the reaction will be complete. Then you must shake the bottle vigorously for 30 seconds, to get some of the H2 gas which collects at the top of the bottle to dissolve into the water (this is an important step).
Then it is ready for drinking.
Notes
• For the test tube, I use
plastic test tubes, which you can buy cheaply on Amazon or eBay. You just have to find a test tube with is narrow enough to fit through a soda bottle top (soda bottle top inside width is 21.5 mm).
• If you do not shake the soda bottle vigorously for 30 seconds when the test tube reaction is complete, you only get 1 ppm of H2 in your water. But after shaking you will get 5 ppm, because the shaking helps dissolve the H2 gas. I was able to measure the ppm using the method detailed in
this post, and I was able to confirm that I get around 5 ppm.
• Using 500 mg of magnesium with 3 grams of citric acid creates around 6 or 7 atmospheres (88 psi) pressure inside the soda bottle. If you use higher quantities you get increased pressure and a higher ppm. But these plastic soda bottles will burst at around 12 atmospheres, so you do not want to have too much pressure. But even if these plastic soda bottles do explode, they just rip, and it's generally not that dangerous (although water will go everywhere).
Obviously because of this pressure, you must never use a glass bottle, which may explode and shatter glass everywhere. And you should not use plastic bottles which are not designed for pressure, as these will not hold the pressure. Only soda bottles designed for fizzy drinks (PET bottles, as they are called) are able to withstand pressure.
• If you want to measure the ppm concentration of the hydrogen-rich water you are making, see the method of measuring ppm concentration in
this post.
How do you get one that isn't contaminated with arsenic as so much magnesium is? And why magnesium at all? Can one use something else?
You do not consume any of the magnesium and citric acid reactants inside the test tube, so no need to worry about any possible contaminants in the magnesium. The test tube remains sealed off from the drinking water in your plastic soda bottle, with only a tiny pin hole in the test tube stopper which lets out the H2 gas from the test tube and into the bottle.
You can sometimes find 99.99% pure magnesium for sale, so if you buy this highly pure version, there will be very little contaminants in it.
Magnesium and citric acid are used just because their reaction creates H2 gas, and these ingredients are cheap and easy to obtain. And they are also safe to handle and non-toxic: even if you were to consume the magnesium citrate and magnesium oxide that the test tube reaction creates, it would be safe, as these are both forms of magnesium sold as supplements.
You can also make H2 gas from the reaction between zinc and hydrochloric acid, but hydrochloric acid you have to be more careful when handling. So I think the magnesium + citric acid reaction is the best.
The commercial hydrogen rich water tablets you can buy are also based on reacting magnesium with an acid like citric acid.