Ostwald Oxidation of Ammonia
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- čas přidán 16. 12. 2012
- Beautiful incandescent reaction of ammonia requires a red-hot catalyst.
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Finally, someone made this process sound interesting by giving it context! Referring to the lecture.
Anyone watching after 2020 😗🧐
Lol 2022
I work in a chem plant that does this very reaction to make nitric acid. Generally ammonia is injected into air compressed by a turbocharger to a concentration of 15 percent or so and then the mix is passed over a platinum mesh. The thing heats up to 850 deg. celsius easily! So much energy is produced, that the plant uses the heat to make 30 atm. steam to do other stuff in the plant. Very cool demo.
hey cool excellent demonstration. I also really liked the little history lesson at the start :)
i wish our education system was this good..
Thanks for this clip! Great demonstration and illustration.
explanation is really good
Nice demonstration.
02:45, nitrates coming mainly from salpeter from Atacama desert, mineral, not animal (Chile, south america yes)
mostly not salpeter (KNO3) but sodium nitrate (NaNO3) from chilli. it is come out from mineral, but it is the result of million years of annimal decomposition.
Is there any reason to suspect that this IS the Ostwald process (producing nitric acid) rather than the complete oxidization (to H2O and N2) of the ammonia?
Saudi Aramco research on NH3 combustion indicates NOx products are formed with lean combustion, so the oxygenated version should give you NOx but the Pt-catalyzed version without O2 injection was probably too rich for NOx products.
6:37 lmao
god that made them look like they have no idea what they're doing lol.
Made it to my favs list
Awesome
good teacher. wow platinum has a high melt point too.
Watching this in 2020
Thumbs up🥰
Amazinggg 😍😍😍
Does platinum wire last long? Will it be weak or broken if used at high temperature?
Duy Nguyễn It will last a long time
Pt is very good element, almost inert. Ig it won't react that easily
didnt seem to work
nice!
Demonstration looks quite interesting.. it would be really helpful if you could address this concern. Is it really safe to inhale ammonia likewise in this demonstration? Since there is no mask used in this
Oh man up
should we dipp the catalyst into liquid ammonia or should it should be above it
If you don't know the answer to this question you should not be doing this demonstration.
Well I think (as I read in my textbook) platinum is used in the form of gauze in Oswald's process so it should be above it right?as nitric oxide gas is drawn away in the oxidation chamber to react it with the excess air to have nitrogen dioxide as a product and blah blah........I am student and not a chemist so better consult a chemist.
I have several questions.
Is the catalyst optional, at the cost of time? Of how much time approximately here?
Can I replace it by nickel which is part of the Platinum column? What can I replace it by, preferentially something not costy as platinum (such as silver) ?
look up how to coat quartz wool with a thin layer of platinum from chloro platinic acid and ascorbic acid[ vitamin c] very cheap platinum catylyst , only a few dollars of platinum required
If you're trying to combust NH3 as a fuel the Pt is optional but you'll need some catalyst to reduce NOx emissions and Pt reappears on that menu. IMO you want a turbine to burn rich, mix further air and finish lean.
Nice demo. Cool how you almost died but kept going unaware of the danger you were in.
Well this made ostwald and habers interesting
Where is the nitrogen dioxide formed in the reaction. I didn't noticed the reddish brown coloured gas in the flask.
The concentration is probably to low to show its color. Also its most likely NO at these temepratures and with so much oxygen, which is colorless.
Why is his name similar to Ben gross from never have I ever?
I dont see any production of NO2 wich is red :-(
With the reaction in equilibrium, the system enthalpy rapidly degrades until the product changes.
Mr. Gross nor anybody else could ever recreate the ostwald process in an erlenmeyer flask. But he can easily demonstrate the first reaction, which he did.
How on earth was that flame able to melt such a thick platinum wire? Without breaking the glass or boiling the liquid? Was it because it was absorbing the hydrogen?
Once he got the temp up enough Pt catalysis split NH3 producing a H-O flame of 2000C on the 1772C melting-point Pt wire. The flame not immediately adjacent to Pt was NH3-O flame of 630C. Solution didn't boil and it's mostly water so it probably stayed under 100C.
Way to go, letting oxygen out of the bottle without a proper regulator. This can be done much safer with slow stream and it can be just air.
Platinum has to be crumpled to lower the heat loss and it has to be immediately dumped into the flask with concentrated ammonia.
Not a very good preparation and it sadly ends with "don't do it if" - which made so many teachers afraid of doing anything remotely interesting in class.
Could humans urine create ammonia
Thank you.
I'm prepared now for the plof.
Because I want to make nitric acid from the ammonia in biogas.
I will lead the biogas through acetic acid making CH3COONH4 to filter the NH3 out of my biogas.
This CH3COONH4 I will mix in a bottle with NaOH to make pure NH3 and CH3COONa-hydrate.
The NH3 I want oxidize with help of a plantinum catalist to nitrogenoxide with will react with water and oxygen to HNO3 nitricacid which i can sell. Biogas also contains H2S which also need to be filtered out and I don't let this going to waste too and make sulfuric acid from it.
This way you can generate a income as a off-grid person.
FeSO4 is better for ammonia filter and it bindes H2S too.
@@Preyhawk81 Then also CuSO4 which forms a very dark blue to purple solution when ammonia is added.
✌
Ammonium with oxygin?
Yessir
FIU PreCalculus class
عشق
higly exothermic..
The confederate women and children saved their urine to make ammonia.
4:24
That voice crack thou
"tho"
Thank you
In combustion if u see yellow flame that there is incomplete combustion(insufficient Oxygen supply).
...due to the particles of soot glowing in the flame. Except, as there is no carbon in this flame, there is no soot. So, think again...
Omg, the "guilt" of Germany for WWI is long disputed, even by mainstream historians. Better stay with chemistry, Sir.
Agreed... Also the mispronunciation of "Haber" drives me nuts. Not even mentioning that the name for the process used in this video is not precise, as the correct name for this transformation is the Haber-Bosch process