First of all, it is obvious that this poster about "Casey" does not know what he is talking about from the mere fact that he does not even know how to spell the man's name he libels. It is Edgar Cayce. Not Casey.
Second, Cayce did no research whatsoever on Atomidine or Atomic Iodine. He was a poorly educated man who devoted his life to going into trance states to psychically derive diagnoses and cures for ill people, among other things. The only chemistry contact he had was through his early vocation as a photographer. He never did scientific lab research on anything, much less the various states of iodine.
Finally, if any of you really want to know what Cayce did or who he was, contact the Association for Research and Enlightenment in Virginia Beach or google the proper spelling of his name.