▁non met als ▁tend ▁to ▁form ▁c oval ent ▁mole cular ▁b rom ides , ▁as ▁do ▁met als ▁in ▁high ▁ox id ation ▁states ▁from ▁+ 3 ▁and ▁above . ▁Silver ▁b rom ide ▁is ▁very ▁ins ol ub le ▁in ▁water ▁and ▁is ▁thus ▁often ▁used ▁as ▁a ▁qual itative ▁test ▁for ▁b rom ine . ▁ ▁B rom ine ▁hal ides ▁The ▁hal og ens ▁form ▁many ▁binary , ▁diam agnet ic ▁inter hal ogen ▁comp ounds ▁with ▁sto ichi omet ries ▁X Y , ▁X Y 3 , ▁X Y 5 , ▁and ▁X Y 7 ▁( where ▁X ▁is ▁heav ier ▁than ▁Y ), ▁and ▁b rom ine ▁is ▁no ▁exception . ▁B rom ine ▁forms ▁a ▁mon of lu or ide ▁and ▁mon och lor ide , ▁as ▁well ▁as ▁a ▁trif lu or ide ▁and ▁p enta flu or ide . ▁Some ▁c ation ic ▁and ▁an ionic ▁derivatives ▁are ▁also ▁character ised , ▁such ▁as ▁, ▁, ▁, ▁, ▁and ▁. ▁A part ▁from ▁these , ▁some ▁pseud oh al ides ▁are ▁also ▁known , ▁such ▁as ▁cy an ogen ▁b rom ide ▁( Br CN ), ▁b rom ine ▁th i oc yan ate ▁( Br SC N ), ▁and ▁b rom ine ▁az ide ▁( Br N 3 ). ▁ ▁The ▁pale - b rown ▁b rom ine ▁mon of lu or ide ▁( Br F ) ▁is ▁un stable ▁at ▁room ▁temperature , ▁dis pro port ion ating ▁quickly ▁and ▁irre vers