What about using the teleport pool, tossing this thing into space?
Ion drives are comparatively easy to make. Cryogenically freeze it, toss it in the portal pool, and point it at the nearest black hole. It'll take a while to actually get there, but there'll be no real reason to worry about it in the meantime.
What happens if it adapts? that's how it's breaking containment so much, it keep adapting to things. it might adapt to the freezeing, and raw vacuum…and then come back extra-pissed. it loses the new adaptations a while after they stop being useful, but still, it's dangerous to try too much on 682, in case it survives it.
I considered the use of the portal pool, at a time when it's cycled to the L1 point and the L1 point is so located that the perturbations in SCP-682's orbit caused by the moon and the sun (and other bodies) would cause it to enter an orbit that would either cause it to impact the sun, or to pass through the corona repeatedly. But I read the description of the pool carefully, and it's not possible for one simple reason: SCP-682 is too massive for the pool to send.
plus all the adaptations to survive a FUCKING BLACK HOLE
The notion of 682 finally getting taken out by 053 is pretty damn funny.
The picture will still be there.
I vote neutralization! 053 is a good choice… they could possibly simply stay in a state of perpetual fighting at least.
Throwing 075 and 682 together seems like an interesting idea as well. If that fails, we'll at least probably be down 075.
Mhmmm I wonder how SCP-682 would have reacted if SCP-407 had been played in its chamber..
I for one like having this thing around. You never know when it might come in handy.
Edit:
If we do try to kill it, I believe SCP-517 has priority.
My vote goes to attempted neutralization via SCP-294, but I may be just a bit biased
I'd be interested in at least a sample of tissue dunked into a cup of SCP-075's secretion, acquired via SCP-294. I realize it's dangerous/impossible to harvest the stuff in large quantities, but the single cup incident doesn't sound like it was excessively damaging.