Redrang604 Posted December 23, 2004 Share Posted December 23, 2004 I have an aqueous solution containing i sulfate ions, what would be a diffinitive test for chloride ions without getting a false postive from the sulfate ions Link to comment Share on other sites More sharing options...
YT2095 Posted December 23, 2004 Share Posted December 23, 2004 the addition of Silver Nitrate Link to comment Share on other sites More sharing options...
Gilded Posted December 23, 2004 Share Posted December 23, 2004 http://www.gcsescience.com/f22.htm "the addition of Silver Nitrate" Hmm, interesting. I didn't know you could use AgNO3 for that sort of testing. Link to comment Share on other sites More sharing options...
YT2095 Posted December 23, 2004 Share Posted December 23, 2004 it`s the standard reagent for Chlorine testing in any Lab Link to comment Share on other sites More sharing options...
Gilded Posted December 23, 2004 Share Posted December 23, 2004 "it`s the standard reagent for Chlorine testing in any Lab :)" It is? How well can it detect chlorine from air? Link to comment Share on other sites More sharing options...
YT2095 Posted December 23, 2004 Share Posted December 23, 2004 bubble some air through it, and the tiniest little molecules will turn it from Clear to instantly milky Link to comment Share on other sites More sharing options...
Redrang604 Posted December 23, 2004 Author Share Posted December 23, 2004 unfortunately, it does the same thing when sulfates are present, which i already know are. Link to comment Share on other sites More sharing options...
Gilded Posted December 23, 2004 Share Posted December 23, 2004 "unfortunately, it does the same thing when sulfates are present, which i already know are. :(" It does? Perhaps you could remove the sulfates somehow and then do the silver nitrate test? Link to comment Share on other sites More sharing options...
Redrang604 Posted December 23, 2004 Author Share Posted December 23, 2004 how would i do that, as far as ive seen anything that would combine with sulfates, combine with chlorides Link to comment Share on other sites More sharing options...
Nave Posted December 23, 2004 Share Posted December 23, 2004 Yea we check like every table and we cant find anything(that wont kill us) that we could use.. Link to comment Share on other sites More sharing options...
Gilded Posted December 23, 2004 Share Posted December 23, 2004 How about nitric acid? Link to comment Share on other sites More sharing options...
budullewraagh Posted December 24, 2004 Share Posted December 24, 2004 "unfortunately, it does the same thing when sulfates are present, which i already know are. :(" no, it actually doesn't. the sulfate anion is more appealing to a cation than the nitrate anion Link to comment Share on other sites More sharing options...
Guest helium Posted December 30, 2004 Share Posted December 30, 2004 To test for chloride ions add a few drops of nitric acid, then silver nitrate, if u get a white precipitate then chloride ions are present. to test for sulphur ions you would have to add barium chloride. Link to comment Share on other sites More sharing options...
budullewraagh Posted December 30, 2004 Share Posted December 30, 2004 add barium or a barium salt (not sulfate) to ppt the sulfate. for the chloride add silver nitrate, which will ppt the silver chloride Link to comment Share on other sites More sharing options...
budullewraagh Posted December 30, 2004 Share Posted December 30, 2004 just a side note, silver nitrate is a good test for all halogens/halides except fluorine/fluoride Link to comment Share on other sites More sharing options...
Gilded Posted January 2, 2005 Share Posted January 2, 2005 "(not sulfate)" Yeah, that's quite obvious. :> Link to comment Share on other sites More sharing options...
budullewraagh Posted January 2, 2005 Share Posted January 2, 2005 yeah, the bond is crazy strong Link to comment Share on other sites More sharing options...
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