26979-63-5 26979-64-6 26979-66-8 26979-67-9 26979-72-6 26979-73-7 7783-82-6 EINECS 232-029-1 Tungsten fluoride Tungsten fluoride (WF6), (OC-6-11)- Tungsten hexafluoride Tungsten hexafluoride [UN2196] [Poison gas] UN2196