HoxonLabs
Harmless
Posts: 4
Registered: 17-9-2024
Location: Cambridge
Member Is Offline
Mood: Rude
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Getting rid of chlorine gas
Hey guys,
How can I get rid of chlorine gas?
It isn’t flammable, but is there anything a can mix it with to dispose of it quickly?
Any help appreciated.
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bnull
National Hazard
Posts: 632
Registered: 15-1-2024
Location: The country that made an art of fence-sitting
Member Is Offline
Mood: I'm back, sort of.
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Bubble it into an alkaline solution of bisulfite* (or was it thiosulfate?). Chlorine is reduced to chloride, which is easier to dispose of.
Edit: Thiosulfate can also be used. I suppose I should include equations. For bisulfite, $$Cl_2 + NaHSO_3 + 3~NaOH \rightarrow 2~NaCl + Na_2SO_4 +
2~H_2O.$$ For thiosulfate, $$4~Cl_2 + Na_2S_2O_3 + 10~NaOH \rightarrow 8~NaCl + 2~Na_2SO_4 + 5~H_2O.$$
*: With an "i", also known as hydrogensulfite, a salt of sulfurous acid. Not to be confused with
bisulfate, with an "a", which is a salt of sulfuric acid. The confusion between bisulfite and bisulfate pops up here occasionally.
[Edited on 20-9-2024 by bnull]
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Sulaiman
International Hazard
Posts: 3793
Registered: 8-2-2015
Member Is Offline
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Prior to relocating, I always had a 500ml bottle of thiosulphate solution (c1M) handy,
great for neutralising halogens, (squirt in bottle,flask etc.and shake)
and silver nitrate solution
(especially on skin/hands/worksurface before exposure to sunlight)
CAUTION : Hobby Chemist, not Professional or even Amateur
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