Thanks to you and all the others who responded to my predicament. I
have started the clean up process and have found a spot outdoors to
work with Silver Black in the future. As far as venting, I was using
it under a fume hood with a filter designed to handle many
chemicals. I assumed (probably not the best thing to do) that I was
working as safely as possible, except of course for the one time I
forgot to keep the solution in a lidded bottle.
By the way, I am a small start-up with no extra funds but I found a
way to make my donation to Ganoksin. If I can, everyone else can
find as way too!