Ozonelabs
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New Ozonelabs Video. The Halogens- Chlorine
Any comments regarding this video, or any possible reactions for Bromine or Iodine please do let us know.
http://www.youtube.com/watch?v=UvtAEmXQg_Q
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basstabone
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you guys always have the best music with your demonstrations! For bromine you could always do the reaction of bromine and aluminum or something along
those lines. Do a classic test for hypochlorite or other reducing compounds with iodine strips or something like that.
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Magpie
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Thank you for the fine video. I enjoyed it, especially the burning of sodium in Cl2.
This is another fine production of Ozonelabs. You not only have demonstrated some good halogen chemistry, but shown how to do it the right way, ie,
safely.
The single most important condition for a successful synthesis is good mixing - Nicodem
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Jor
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Nice!
Some interesting reactions with bromine:
-Dropping a few drops of bromine in concentrated ammonia. Very vigorous reaction with lots of smoke, ammonium bromide and nitrogen are formed.
-React with alkene
-Al + Br2 (although you already have a video of this)
-React bromine with a stoichmetric amount of iodine. You get IBr. When heated this has a red vapour , very different from the orange brown of bromine.
Keep 3 test tubes in a row, one with I2, one with Br2 and one with IBr, all heated.
Chlorine also forms ICl with iodine. I think ICl vapour is brown, but I'm not sure.
-Lead H2S from your cylinder over bromine, with maybe a drop of water added (maybe the reaction won't commemce with dry bromine). I think you will get
yellow sulfur smoke, and HBr fumes.
-A one nice for youtube, to show to the newcomers in science:
Show 2 vials of mercury and bromine and tell these are the only 2 liquid elements. Then combine a drop of mercury with a few drops of bromine, and
show the product is a white/yellow powder. I think it will react, but i'm not sure how fast. Do it safely, if the reaction is vigorous HgBr2 smoke
will result. If so, keep the test tube just below the exhaust , so no smoke will settle on the walls in your hood.
There are many more, I'm not going to make a huge list. 
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12AX7
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Very nice.
Tim
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woelen
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This is the right way to do it. Very good and enjoyable! This video is cool (and not kewl!).
A very interesting property of the halogens is their reluctance to react with many compounds when they are really dry. This can be demonstrated
impressively as follows:
- mix some crushed iodine crystals with dry magnesium powder and then with a glass rod add a drop of water. A very violent reaction then starts,
producing a big purple cloud of iodine vapor
- pour some dry bromine (0.5 ml) on a little piece of sodium (just a few cubic mm should be used). No reaction occurs, not even after quite some time.
The sodium floats on the bromine. Then add a very small amount of water. The sodium reacts with the bromine in a bright flash of fire, almost
explosively and a thick cloud of bromine vapor erupts from the test tube. This is quite dangerous, so use really small amounts of sodium. This demo
also works with a chip of magnesium floating in the bromine, which reacts violently when water is added. The sodium reaction, however, is more
spectacular.
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Ozonelabs
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Today we completed the following reactions-
Bromine with Phosphorus, with Hydrogen Sulphide, with Pinene (as an alkene).
Iodine with Pinene and also mixed with Zinc and initated with water.
There will be a video tomorrow.
Thanks a lot for all the suggestions- very much appreciated!
We have some ICl already, so will endevour to show- Cl2, Br2, I2, IBr and ICl tomorrow also.
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