In a concentration of 1 per cent the ammonium salts of weak acids react positively with ninhydrin. by on March 14, 2009 www.jbc.orgDownloaded from. V. J. Harding and F. H. S. Warneford 335 3. In very high concentration the ammonium salts of the strong mineral acids give a positive ninhydrin reaction.
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Homefacts City Report. Wilmette is located in Cook County, IL. The population is 27,298. There are 7 public schools in Wilmette with an average Homefacts rating of A+. The total crime rate for Wilmette is low, and there are 6 registered sex offenders residing in the city.