as i heard from others, it was bromine. yes, apparently i had bromide impurities, which resulted in a red/brown/orange volatile gas that causes pulmonary edema. i felt a little bit of the pulmonary edema setting in for an hour or so, but it has since subsided, as i wasnt exposed to much.
i now have a beaker of deep red solution. could that be a combination of the tribromide and triiodide anions?