Barium Peroxide, Sulfuric Acid: Iron, Potassium Permanganate

Note: the "poor explanation" of my video is strictly due to the fact that this experiment corresponds to a university class. I can't just give out reactions and answers. The video can be used to analyse the reaction. Were there bubbles (i.e., evolution of a gas)? If so, what gas is it? Does the permanganate solution simply dilute in colour, or is there a colour change? This would clearly indicate a reaction. Is there precipitate formation? Again, very indicative of a reaction, if there is. Think about what you observe to help answer questions on the experiment, such as chemical equations.

In my "Chemistry of the Main Group Elements" lab at the University of Manitoba in Winnipeg, we synthesised the barium peroxide. This video shows the experimentation with the substance, involving barium peroxide in sulfuric acid, with experimentation involving iron and potassium permanganate (separately).

A solution was made, with about 0.3 grams of barium peroxide (synthesised earlier in the experiment) placed into about 20 millilitres of sulfuric acid solution. The solution was split into two.

One portion had about 0.1 grams of iron powder added to it. This is the first reäction.

The second portion had a solution of 2 crystals of potassium permanganate dissolved in about 5 millilitres of water added to it. This is the second reäction.

Category:

Science & Technology

Tags:

• Barium
• Peroxide
• Sulfuric
• Acid
• Iron
• Potassium
• Permanganate
• BaO2
• H2SO4
• Fe
• KMnO4
• University
• Manitoba
• Winnipeg
• Chemistry

[EhtYlno]

hey whats that man, i read on chemistry that it was potassium manganate, but yo wrote permanganate

[ummacles]

@EhtYlno

It is indeed permanganate and not manganate. The manganese in permanganate is in the +7 oxidation state, and thus is purple. The manganese in manganate would be in the +6 oxidation state, and would look green. Here, we are using permanganate.

[toy1022]

is barium peroxide damaging to the hair, my henna contains this chemical

[ummacles]

@toy1022

Technically, yes. It's an oxidising agent, and is used for bleaching. What I'm assuming it would do to your hair is bleach the hair itself while dying it the henna colour, which would not be oxidised by the barium peroxide. Either way, pretty much anything that you use to change your hair's colour or bounce is damaging to it. It's not really such a big deal, though, since hair is dead, and you're not modifying the living root.

[MrAlistairSpalding]

I've seen this one before. They way they do it is by switching the beakers when they're out of shot at 0:36. Nice trick though. It's amazing what they can do with magic these days.

[soyunclonyque]

i) H2SO4 + Ba(O2) --> H2O2 + BaSO4 (white pp)

Fe° + H2SO4 + H2O2 --> Fe(II) (greenish) + SO4(-II) + 2H2O

ii) H2SO4 + Ba(O2) --> H2O2 + BaSO4 (white pp)

2KMnO4 (intense violet) + 3H2SO4 + 5H2O2 --> 5O2 (gas) + 2MnSO4 (virtually colourless) + K2SO4 (colourless) + 8H2O

Isn't it?

[OrganicWebhead]

awesome =)