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Topic: Triphosgene  (Read 5493 times)

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Offline ashishmali

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Triphosgene
« on: June 26, 2006, 09:07:47 AM »
Please advice to the following proble.
We have unreacted Triphogene gas evolved ni process .
Can someone advice what Medium should used in Scrubber to neutralise the Triphosgene ?
Caustic/ Ammonia should used?
ASHSIH MALI
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Offline ashishmali

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Re: Triphosgene
« Reply #1 on: June 26, 2006, 09:23:36 AM »
Correction !!!
Phosgene gas is evolved from reaction . Which medium should used in Scrubber to neutralise it.


Ashish Mali
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Offline Morphic flip

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Re: Triphosgene
« Reply #2 on: June 26, 2006, 02:18:41 PM »
Caustic solution I would have thought.
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Offline Mitch

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Re: Triphosgene
« Reply #3 on: June 27, 2006, 02:39:26 AM »
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Offline HP

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Re: Triphosgene
« Reply #4 on: June 27, 2006, 02:15:11 PM »
Here the problem is quite easier to solve with COCl2 as gaseous. If using concentrated amonia/water(may be 25%) then when neutralizing phosgen you'll obtain probably urea (carbamid) as product this reaction. With NaOH just NaCl and NaHCO3.. By my opinion conc. amonia will work nice too also phosgene may react with NH3 at gaseous phase too ;)But the classic is 5-10% NaOH
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