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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ARTICLE Stephanie Matheson. A same level house extension in Australia will cost approximately $60,000 to $200,000+. Adding a room or extending your living area on the ground floor are affordable ways of creating more space. Here are some key points to consider that will help you keep your renovation costs in check.