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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: Rutherford on March 31, 2014, 08:12:12 AM

Title: Nessler reagent reactions
Post by: Rutherford on March 31, 2014, 08:12:12 AM

Which ions react with Nessler reagent?
Besides ammonium, I think that sulphate react, too, but I am not sure.

Title: Re: Nessler reagent reactions
Post by: Hunter2 on March 31, 2014, 11:01:15 AM

No, Neßler is senstive to ammonium.

http://en.wikipedia.org/wiki/Potassium_tetraiodomercurate%28II%29

Title: Re: Nessler reagent reactions
Post by: Rutherford on March 31, 2014, 11:16:03 AM

I remember that some (an)ion can mask the test for ammonia, but I can't recall which one. I would tip on one of these: chloride, sulphate, nitrate. Does someone know something about this?

Title: Re: Nessler reagent reactions
Post by: Hunter2 on March 31, 2014, 11:20:10 AM

Probably Chloride, because HgCl is unsolouble. Sulfate and Nitrate is no problem.

Title: Re: Nessler reagent reactions
Post by: Rutherford on March 31, 2014, 11:56:37 AM

That's it. Thank you.