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Detecting Ammonia

  1. Jun 8, 2010 #1
    What is a cost efficient, yet accurate way to detect ammonia in a gaseous mixture?
  2. jcsd
  3. Jun 8, 2010 #2
    Ammonia fumes react with HCl fumes and make a white smoke of ammonium chloride. Accuracy depends of the mixture, I guess.
  4. Jun 8, 2010 #3


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    Last edited by a moderator: Apr 25, 2017
  5. Jun 9, 2010 #4
    Those Draeger tubes look like a viable solution, though it is a bit pricey for home use. The pump looks to be $600 for the cheapest version then $70 per test for the tubes.

    The reason I am asking is I am wondering, with the application of selective catalysts to vehicles throughout Europe and the US, if there is a cheap way for the home mechanic to determine the efficiency of the urea injectors. $650 for a troubleshooting tool is too much for that purpose.
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