LifeisElemental
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Lead (II) Iodide Demonstrational Video - And Future Ideas?
https://www.youtube.com/watch?v=iB1oAhRdZIg
Hey guys,
A friend had to film a demonstration video for a media class and we showed the very simple creation of lead (II) iodide. I wanted to share this with
you guys and also get feedback on possible demonstrations that are as beautiful or more? He really liked how it turned out and we are planning to make
a small series out of this.
Thanks!
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Metacelsus
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"Hangover Helpers" ?
Really?
Nice video, by the way. A future suggestion I have is to distill ethanol from a fermentation mixture, going with the hangover idea.
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DrMario
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Drop the hangover dude, and it's an enjoyable video.
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j_sum1
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Agreed. I enjoyed MrHomescientist's golden rain video more.
https://www.youtube.com/watch?v=4xSUvSGywXo
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LifeisElemental
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Certainly agree on that!
Thanks for the feedback guys I agree on the hangover helpers bit as well not my decision and it was only that one video that he decided to call that.
Future videos I want to make more educational and let the reaction be the star as it should.
I would like to do the decomposition of nitrogen triiodide and I would like to have my facts straight.
If I was to represent NI3 · NH3 as a Lewis structure how would I go about this? I realize this is likely a complex and am having difficulties
finding information online about this.
Help would be very appreciated, thank you guys!
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j_sum1
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Quote: Originally posted by LifeisElemental  |
I would like to do the decomposition of nitrogen triiodide and I would like to have my facts straight.
If I was to represent NI3 · NH3 as a Lewis structure how would I go about this? I realize this is likely a complex and am having difficulties
finding information online about this.
Help would be very appreciated, thank you guys! |
https://www.youtube.com/watch?v=84cTSgbC5kE
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LifeisElemental
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Thanks! But it is the NH3 that is confusing me. From wikipedia and a few other sources when the preparation involves iodine dissolved in
NH3 the product is referred to as NI3 · NH3.
"The decomposition of NI3 proceeds as follows to give nitrogen gas and iodine: 2 NI3 (s) → N2 (g) + 3 I2 (g) (–290 kJ/mol)However, the dry
material is a contact explosive, decomposing approximately as follows:[3] 8 NI3 · NH3 → 5 N2 + 6 NH4I + 9 I2"
It is the NI3 · NH3 I am confused about - do you have any suggestions?
EDIT (After a bit of looking into it):
So this is a coordination complex of NI3 with a NH3 ligand? So NH3 donates electrons to some atom in the molecule? Or maybe the H atoms from NH3 are
donated electrons from the I atoms or the N atom in NI3? Is this an actual bond I could show?
EDIT EDIT
Through digging around the internet some more I found my way back to this forum where it is quoted that...
" When you synthesize NI3 from ammonia and KI.I2 solution, you never get pure NI3, but a mixture of NH2I, NHI2 and NI3, commonly referred to as
NI3. n NH3."
Is this true? It makes more sense than trying to make a coordination complex out of what seem to be two lewis bases.
EDIT EDIT EDIT
http://books.google.com/books?id=wfJHAAAAQBAJ&pg=PA296&a...
That source seems to conflict with the sciencemadness members that suggested multiple different nitrogen iodides are produced.
[Edited on 22-11-2014 by LifeisElemental]
[Edited on 22-11-2014 by LifeisElemental]
[Edited on 22-11-2014 by LifeisElemental]
[Edited on 22-11-2014 by LifeisElemental]
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DrMario
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| Quote: Originally posted by LifeisElemental |
Thanks for the feedback guys I agree on the hangover helpers bit as well not my decision and it was only that one video that he decided to call that.
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Are you at liberty to edit the hangover guy out of the video? I do think that, once you remove this "helper", yours is one of the best videos on lead
(II) iodide out there. Especially the part where you dissolve the compound to have it recristallize later.
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LifeisElemental
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| Quote: Originally posted by DrMario | | Quote: Originally posted by LifeisElemental |
Thanks for the feedback guys I agree on the hangover helpers bit as well not my decision and it was only that one video that he decided to call that.
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Are you at liberty to edit the hangover guy out of the video? I do think that, once you remove this "helper", yours is one of the best videos on lead
(II) iodide out there. Especially the part where you dissolve the compound to have it recristallize later. |
Thanks! My friend (behind the camera) and I, will hopefully someday film this reaction again in a way that highlights the reaction more than a skit.
That is the plan for future videos which is why I have been looking for similar stunning reactions.
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