Chemical Waste How full is too full?

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Presentation transcript:

Chemical Waste How full is too full? An explanation of the reason why…

Chemical Waste How full is too full? Too much! Dump some out. Just Right

Chemical Waste How full is too full? The reason why: if liquid fills the bottle up to the neck, there will be little room for expansion. If temperature increases, the liquid will expand. It has happened: one summer on a hot day the air-conditioning went down and a waste bottle of THF shattered when the liquid expanded.

Chemical Waste How full is too full? So never fill liquid above the wide portion of the bottle!

Chemical Waste Common Chemical Collection and Packaging Problems Chemicals not labeled Incomplete information on labels and waste packing forms, e.g., contents descriptions, percentages, pH, and amounts Chemical names and descriptions on waste packing form do not match those on container labels Some containers are not listed on forms Hazardous liquid containers packed on their side Bottles not tightly capped Incompatible chemicals packed together UofM, DESH http://www.dehs.umn.edu/hazwaste_chemwaste_umn_cwmgbk_sec4.htm#s3