Blue bottle (chemical reaction)

<p><a class="extiw" title="en:Blue bottle (chemical reaction)" href="https://en.wikipedia.org/wiki/Blue_bottle_%28chemical_reaction%29">Blue bottle (chemical reaction)</a></p> <p>By: <a class="external text" href="http://www.youtube.com/user/ScienceCOLA" rel="nofollow">ScienceCOLA</a></p>

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