My guess would be that the products would be gases. Pinching a little ball of deteurium would make it very hot, and vaporise the metal that squishes it.
Are gases dangerous at 30km/sec?. I mean, of course they are, but are they still dangerous in space?. Will the cloud keep more or less cohesive or will it disperse?
It will disperse. Gas is made up of atoms going in many different different directions; even if some gas doesn't seem to be moving that's just a statistical average.
Thus, in space all those different particles will fly off in different directions at 30km/sec. They'll be harmless in microseconds.
