How to make Sulfuric acid (H2SO4) by using Copper sulfate (CuSO4) by electrochemistry

WARNING: This experiment deals with highly corrosive sulfuric acid and copper sulfate. Wear gloves to handling them. In this video, I will show you, how to make concentrated sulfuric acid by using copper sulfate (electrochemistry). You will need :
- copper sulfate
- a vial
- some source of energy (battery or transformer)
- two electrodes (I´m using two nails but carbon or other electrodes are better).
Connect positive wire on the nail (anode) and negative wire on another nail (cathode). Get a solution of 1.5 grams of copper sulfate and 15ml of water and stir it. Give the transformer into an electrical plug and insert anode and cathode into the solution in vial. At the cathode is producing hydrogen gas and copper. After 30 minutes, it should be completed. Solution turns into white. Just filter it of because copper is everywhere in solution. Now you have weak Sulfuric acid. To concentrate it, just boil it down in a glass container because it´s highly corrosive. When it reaches 70% concentration, white smoke will be produced. I AM REALLY SORRY FOR THE COMMENTS ABOUT USING TWO IRON NAILS, USE CARBON OR OTHER ELECTRODES OR ELSE THIS WILL NOT WORK. , Thank you for watching another ChemExperimentalist original video. Please, subscribe, rate and comment.

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Category:

Science & Technology

Tags:

• sulfuric
• acid
• copper
• sulfate
• electrochemistry
• ChemExperimentalist
• electrochemical
• method
• H2SO4
• CuSO4
• how
• to
• make
• original
• video
• blue
• solution
• transformer
• nails
• anode
• cathode
• water

[bla287]

Sorry, but by using iron electrodes, your solution will mainly consist of FeSO4. Iron isn't noble enough for being anode, even Cu isn't because you want water to be oxidized to oxygen at the anode so you can get H+ ions.

You want this oxidation:

2 H2O -> O2 + 4 H(+) + 4 e(-) |E0 = +1,23V

but you get this oxidation:

Fe -> Fe(2+) + 2 e(-) |E0 = -0,44V

because for oxidation reactions, the reaction with the lower potential is the most likely to happen (reductions are the other way around).

[ChemExperimentalist]

@bla287 Thank you for the comment. Yes, sorry about that, but notice, this video was uploaded in 8.2.2010, what is nearly 2 years ago, when I knew shit about chemistry. Lol, actually today, right now, I´m making a remake for this video (with copper and carbon electrodes) in HD so please, be sure to subscribe my channel and I promise, that the result will be much better. Maybe I´ll make a new intro for my videos too. :)

[iskatelikeanoob]

looks a little comtanimated

[ChemExperimentalist]

@iskatelikeanoob This experiment is going to be revisited, so please subscribe, i will make a remake of this video in HD and it will be much better !

[iamsogood9901]

use proper lab instruments lah...use popper filter funnel,electrode,filter paper and USE A BEAKER FOR EASY ACESS

[xXJustWarXx]

i can tell by the plug that you are, A HUMAN MAN. and i just pooped my pants listening to that soundtrack for five minutes.

[carbineZDH1]

for a carbon eletrode could you break open a pencil and use the graphite in it or will that not work?

[ChemExperimentalist]

@araimundo1 Okay i agree with you. I´m going to make a remake for this video in HD. So please be sure to subscribe.

[araimundo1]

@ChemExperimentalist The soundtrack is so stupid. The whole video is stupid anyways.