I am an environmental consultant. I have a client with an old, probably defunct telephone panel board with numerous 1A2 400D KTU cards.

My issue is that a green colored liquid is leaking (very slowly) from the cards and we have been unable to identify its source or the exact make-up of the liquid.

Any help or insight would be greatly appreciated.

Ideally an MSDS of the source liquid would be optimal, but at this point I'll take any info I can get.