My high school science teacher, told us when he was in University, they coated the lab floor in a thin layer of this. They could not get rid of the ghostly purple foot prints it left on the floor ;)
This guy laid it on too thick. We always used it in a thin acetone solution. perfect for doorknobs and such.
Alas, iodine is one of the substances that is no longer generally available. /checks usual sources... nope not even as a K or Na salt/ There is one source, but I don't want to bust it as it is used as a thyroid anti-radiation prophylactic.
You may have noticed it was in blotter paper. When wet it's stable.It's a precipitate, so one makes it, racks off the excess, and pours the remainder through the paper.
Then it being fairly dangerous once dry, I suspect they set in place and waited for it to dry.
The canonic tool I've see for demonstrating it is an puffy ostrich feather.
My high school science teacher, told us when he was in University, they coated the lab floor in a thin layer of this. They could not get rid of the ghostly purple foot prints it left on the floor ;)
ReplyDeleteThis guy laid it on too thick. We always used it in a thin acetone solution. perfect for doorknobs and such.
ReplyDeleteAlas, iodine is one of the substances that is no longer generally available. /checks usual sources... nope not even as a K or Na salt/ There is one source, but I don't want to bust it as it is used as a thyroid anti-radiation prophylactic.
iodine /= iodide
DeleteI-)
How on earth do they handles this stuff without exploding it? What about shipment? Does it need air to be explosive?
ReplyDeleteYou may have noticed it was in blotter paper. When wet it's stable.It's a precipitate, so one makes it, racks off the excess, and pours the remainder through the paper.
ReplyDeleteThen it being fairly dangerous once dry, I suspect they set in place and waited for it to dry.
The canonic tool I've see for demonstrating it is an puffy ostrich feather.
Take look at
ReplyDeleteC2N12 ...
Azidoazide Azide
http://pipeline.corante.com/archives/2013/01/09/things_i_wont_work_with_azidoazide_azides_more_or_less.php
I totally enjoyed the humor in their closing paragraph. Thanx, Aleksejs.
ReplyDelete@aleksejs
ReplyDeletemy favorite has always been
http://blogs.sciencemag.org/pipeline/archives/2008/02/26/sand_wont_save_you_this_time
note the new host
Wish we could talk him into a book.