At Walmart the other day I spotted this fire diamond. It was randomly there on a wall on the side of the store, with seemingly no explanation. There were no chemical tanks or anything near the sign, but there was a door that was a little bit away.
I cannot find anything that has this fire diamond, let alone a corrosive oxidizer.
Any help in finding this mystery chemical is appreciated.
The fire diamond is shown below. It does use the informal "COR" symbol, which means corrosive.