| | |   Drain opener (foaming). This is sodium hydroxide-based drain opener with a twist.  See the little shavings?  Those are probably either magnesium or aluminum, which will generate hydrogen gas when the sodium hydroxide is dissolved in water, creating a foaming action.  At least, I think that's the idea.
 Source: Farm & Fleet
 Contributor: Theodore Gray
 Acquired: 28 June, 2009
 Text Updated: 29 June, 2009
 Price: $10
 Size: 2"
 Purity: 56%
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