To get the hazardous waste bucket emptied, fill out the form found here:
http://www.stanford.edu/dept/EHS/prod/enviro/waste/pickup/WastePickup_form.htm
Make sure there is a Hazardous Waste tag on the bin when they come pick it up. The table below provides most of the info needed to fill out the online form and the tag.

I just talked to the guy that runs the whole waste pickup thing. He told me just to put Urethane and Silicone and approximate weight. That's it!

Building 02-530, Room 129A, just estimate the volume of waste in the garbage can.

Description	Ingredients	Toxic?	Reactive?	Flammable?	Datasheet Link
Innovative Polymers Polyurethanes:
10A Resin	modified diphenylmethane diisocyanate contains MDI	X		X
10A Hardener	none	X
35A Resin	modified diphenylmethane diisocyanate contains MDI	X		X
35A Hardener	none	X		X
90A Resin	modified diphenylmethane diisocyanate contains MDI	X		X
90A Hardener	none	X		X
72DC Resin
72DC Hardener
Quik-Cast A	modified diphenylmethane diisocyanate, 12-19% With MDI, 44-50% methylene bisphenylisocyanate, 33-38% concentration polymeric plasticizer, 35-40% triethyl phosphate, <2%	X	X
Quik-Cast B	Polyether polyols amine based, 50% polymeric plasticizer, 50%	X
Smooth-On Polyurethanes:
Task 3	4, 4’ Methylene bis(phenylisocyanate)	X			MSDS
Task 9	4, 4’ Methylene bis(phenylisocyanate) Butyl benzyl phthalate	X			MSDS
Vytaflexes Part A	Diethylhexyl Phthalate, 1-5% Toluene Diisocyanate (mixed isomers), <1%	X	X
Vytaflexes (All) Part B	Diethyltoluenediamine, 1-5%	X
Vytaflex 50,60 ONLY Part B	Di(methylthio)toluene diamine, 5-10%	X
Silicones: