Hi Bowler,
As I understand from your post that you still do not have a red copper 1 oxide. Which later you want to place in the bucket in the volcano area.
Did you use the black bead on any part of the outer ring of the atom at the machine at the Hallway of the Cu area? This will change the Cu2O to Cu1O.
Cu area: In the hall, zoom in one the goofy looking thing on the right by the dial. Put copper2oxide in the left cup and place a black bead on the outer ring. Push the red button. Collect copper1oxide from the right dish.
If you're already in the volcano area and cannot place the chemical red Cu1O in the bucket - you have to zoom in on the buckets to place anything on them.
Good luck!
MaG