Moskits2005
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Gas neutralisation
In school i how to draw a laboratory equipment set to neutralise HBr gas with Ca(OH)2!
Maybe someone has a picture or drawing how the set looks?
What does bubbler do in this system?
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bfesser
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Thread Moved
2-9-2013 at 07:48 |
subsecret
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When doing this kind of experiment, there's some piece of equipment that bubbles said gas through water, or in your case, a calcium hydroxide
solution.
Here's a picture of a gas-washing bottle.
http://www.thomassci.com/_resources/_global/media/resized/00...
The gas enters through the tube on the left, passes down the tube, through the fritted end, and bubbles through the solution. The remaining gas leaves
through the tube on the right. You could make one of these very easily, provided that your lab has some 2-hole rubber stoppers and some glass tubing.
http://www.scientific-labsglassware.com/product/thumbnails/2...
To my knowledge, gas bubblers are not used for this purpose. They're generally used on Schlenk lines to provide a little bit of nitrogen pressure to
the system. You could, however, use a gas bubbler to neutralize HBr, but it would be less efficient.
Also, welcome to Sciencemadness.
[Edited on 2-9-2013 by Awesomeness]
Fear is what you get when caution wasn't enough.
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Fantasma4500
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i suppose the best would be to make a light slurry with the Ca(OH)2
i know that Cl2 passed through moist (slurry?) NaHCO3 should produce dichlorine monoxide
also this isnt something you would want to do unless if you like to live on the edge, as it can 'detonate' (? doubtfully) or atleast very powerfully
and loudly deflagrate on contact with organics, even dust particles
but as awesomeness mentions, the point is to have smaller bubbles >> larger surface area, thereby more efficient reaction
i dont think you should rely very much on the Ca(OH)2 dissolved in the water, as it has extremely low solubility, and usually solids reacts slower
with liquids or gasses than gasses on gasses, liquids on liquids and solids on solids (:
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AJKOER
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Quote: Originally posted by Antiswat  | i suppose the best would be to make a light slurry with the Ca(OH)2
i know that Cl2 passed through moist (slurry?) NaHCO3 should produce dichlorine monoxide
also this isnt something you would want to do unless if you like to live on the edge, as it can 'detonate' (? doubtfully) or atleast very powerfully
and loudly deflagrate on contact with organics, even dust .. (: |
OK, passing steam and Chlorine over heated NaHCO3 or NaOH will form some Cl2O, but only around 10% yield per a commercial process.
Decomposition of chlorine monoxide are reportedly mild, but increase in violent with concentration.
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Fantasma4500
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i was actually planning to try out Cl2O in a metal can which would then be sealed and heated to make it go bang, but well other stuff sort of
cancelled my plans
do you have anything with some fact about Cl2O? i havent found much if anything about it
i remember long time back looking up ways to make ClO3, it was decribed to use solid ClO as in Ca(ClO)2 and in the process as he wasnt around he heard
a loud bang, when he came back in the room there was no signs of the bang, this was later thought to be Cl2O that somehow managed to form and well
'react' with itself
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