cleaning with Strontium-90

We're moving tomorrow morning to a hotel. So I'm cleaning now and came across these:
What is in here? Strontium-90? Thallium? Both of these? Whatever it may be, it works great. The color is a little disturbing though. Hope it does not impair future reproductive choices.

Who names white bathroom tissue "RED"? What do you think of when you think of red? Blood. Ketchup, maybe, if you are four.

So what do you want to think of when you wipe your nether regions?? Blood? NO. Not even BASIC blood!