What do I do with these chips?

Originally Posted by injunjoe

Thank you Sam for this information.

I take it all semiconductors such as IC chips also will contain GaAs, is this pretty much correct?

Actually, most IC's and EPROM's utilize, almost exlusivly silicon metal as semi-conductor material.
But who know what are they NOT telling you on the 'spec sheet' and RoHS documentation... I know Silicon is doped with other elements in fraction amounts.
In any case, inhaling or ingesting represent the most danger in what we do. Try to always work with a dust mask or up wind when you disassemble or crush old electronics.