Make Sulfuric Acid (metabisulfite/oxidizer Method)
Intro: Make Sulfuric Acid (metabisulfite/oxidizer Method)
We make concentrated sulfuric acid from sodium metabisulfite, hydrochloric acid and an oxidant such as hydrogen peroxide or nitric acid.
Warning: The procedures in this video produce large quantities of toxic gases and deal with highly corrosive acids. All work must be performed in a fume hood with proper safety equipment. And all apparatus must be glass to withstand the acids.
Sodium metabisulfite upon reaction with acid will generate sulfur dioxide. This provides a convenient source of sulfur dioxide that is easier to handle than burning sulfur.
But it is acceptable if you want to go that route. You'll just need to build a sophisticated gas capture and scrubbing system so the sulfur vapors and soot don't clog your tubes, poison your air and possibly burn down your workspace.
Sulfur dioxide is converted into sulfuric acid by reacting it with an oxidizer in water. In this case either hydrogen peroxide or nitric acid.
Industrially, sulfur dioxide is reacted with oxygen over a catalyst to make sulfur trioxide. This is cheaper but extremely difficult to do safely for the home chemist so the metabisulfite/oxidizer method is used instead.
You may use potassium metabisulfite instead of sodium metabisulfite. Both are used by home brewers to sterilize winemaking and beermaking mixtures. It's also used for homemade dyeing processes. Therefore it is very easy to obtain the metabisulfites without the need for expensive shipping fees or licenses.
The oxidizers must be present for this reaction to work. You cannot simply use water or you'll just make sulfurous acid which decomposes on heating and is useless for the reactions that sulfuric acid is intended for.
In future videos, we may show other methods of sulfuric acid production including sulfur trioxide based methods so please subscribe!
If your like this video, please check out our others at http://www.youtube.com/NurdRage
Warning: The procedures in this video produce large quantities of toxic gases and deal with highly corrosive acids. All work must be performed in a fume hood with proper safety equipment. And all apparatus must be glass to withstand the acids.
Sodium metabisulfite upon reaction with acid will generate sulfur dioxide. This provides a convenient source of sulfur dioxide that is easier to handle than burning sulfur.
But it is acceptable if you want to go that route. You'll just need to build a sophisticated gas capture and scrubbing system so the sulfur vapors and soot don't clog your tubes, poison your air and possibly burn down your workspace.
Sulfur dioxide is converted into sulfuric acid by reacting it with an oxidizer in water. In this case either hydrogen peroxide or nitric acid.
Industrially, sulfur dioxide is reacted with oxygen over a catalyst to make sulfur trioxide. This is cheaper but extremely difficult to do safely for the home chemist so the metabisulfite/oxidizer method is used instead.
You may use potassium metabisulfite instead of sodium metabisulfite. Both are used by home brewers to sterilize winemaking and beermaking mixtures. It's also used for homemade dyeing processes. Therefore it is very easy to obtain the metabisulfites without the need for expensive shipping fees or licenses.
The oxidizers must be present for this reaction to work. You cannot simply use water or you'll just make sulfurous acid which decomposes on heating and is useless for the reactions that sulfuric acid is intended for.
In future videos, we may show other methods of sulfuric acid production including sulfur trioxide based methods so please subscribe!
If your like this video, please check out our others at http://www.youtube.com/NurdRage
30 Comments
h0meIandsecurity 13 years ago
TrollFaceTheMan 10 years ago
^What The F***..?^
samuelx3 3 years ago
dciocoiu 14 years ago
TrollFaceTheMan 10 years ago
Yes, salt with vinegar does make a very, and I men very weak form of Hydrochorric acid. That is why it is a more efficient cleaner then vinegar alone... However I have not heard of a way to actually produce practical amount of concentrated Hydrochloric acid by doing this, even via electrolysis...
create-it1205 6 years ago
you can make hydrochloric acid by mixing baking soda and regular salt in the right quantity. then heat that mixture and lead the gasses throug water. the water will become your hydrochloric acid
samuelx3 3 years ago
H2CO3 is not HCl
Edit: i guess if H2CO3 wasn't volatile this might work, but in this case would likely just lead to the baking soda decomposing.
19ribs 8 years ago
Nurdrage, i just wondering. Can we make commonly sulfuric acid from "sulfuric acid anhydrous" and hydrogen peroxide, is it possible?
MegalodonShark 4 years ago
SHOE0007 6 years ago
theegghead 8 years ago
does the concentration method portrayed in this video also work for HCL?
cyberpig 14 years ago
NurdRage 14 years ago
TrollFaceTheMan 10 years ago
"Why..?" You ask..? Because in the pursuit of science their is no set course to be followed... That is the fun part!! :D
dciocoiu 14 years ago
antienoob 14 years ago
TrollFaceTheMan 10 years ago
H2SO4 or sulfuric acid is used in many scientific demonstrations and chemical synthesis, including: Sulfuric acid in "Sugar Dehydration, Carbon Snake Demonstration..."
It can be mixed with nitrates such as Ammonium Nitrate, Sodium Nitrate or Potassium Nitrate and then heated and distilled to produce Nitric Acid... It also is used to concentrate Nitrite acid, seeing as it affinity for water is so strong...
Plus it is commonly used as a stabilization agent in the production of Nitrocellulose cotton, Also know as Flash Cotton, Gun Cotton and Magicians Cotton... Which is what they used to make Smokeless gun powder...
To name a few...
heat700 14 years ago
TrollFaceTheMan 10 years ago
Dehydration of sugar to make carbon snakes... Stabilization agent in Flash Cotton, also can be used in production of Nitric acid...
Jimmy Proton 13 years ago