Ah, well then my apologies for srtiking down your suggestion. From the looks of the reactants and solutions I would bet is a hydrated oxidizer of some sort. I still find it unlikely to potassium dichromate, you generally don't run into that until university, it's pretty dangerous for high schools to use it, although I've seen crazier things done. At any rate, in order to identify it I would really need more data than just a picture. I'm nearly certain that it isn't organic, those are usually small and white to light yellow crystals. I would guess it is a hydrated transition metal salt of some kind, since it's orange I would guess fome kind of Iron possibly...maybe hydrated lead nitrate. The real key to I dentifying it is what if any reactions occurred when the crystals were added to the solutions. For instance, if it was a bromine salt of some kind, which is another possibility, it would have reacted very similarly to the iodine although it would have been much more vigorous. KMnO4 may have oxidized ethanol to to ethanoic acid, at the same time the iodine my have halogenated the double bond of the ethylene glycol. I just need more data.