Periodide is a 9 letter English word.
You can make 179 anagrams from letters in periodide (ddeeiiopr).
1810-20; period(ic acid) + -ide
Even when a little of the protiodide and iodine are merely rubbed together in a mortar, a portion of the periodide is formed.
The periodide of mercury is a brilliant red pigment, but somewhat evanescent.
Mercury, periodide of, an exception to the law of conduction?
I was unable to contrast it with the protiodide, the latter being converted into mercury and periodide by heat.