Beldstein Test: This is a qualitative chemical test for halides. In this test, heat the tip of a copper wire in a burner flame until there is no further colouration of the flame. Let the wire cool slightly, then dip it into the unknown solid or liquid and again, heat it in the flame. A green flash is indicative of chlorine, bromine and iodine. Fluorine is not detected because copper fluoride is not volatile.
