Thank you. Let me verify what I read or if I mix anything up here, which may be. It’s a long time ago.No, it isn't any sort of oxidizer, which you claimed and which is why I asked. I think you must be confusing it with something else.
Rubidium metal is a super strong reducing agent and no one would be using it since it bursts into flame on contact with water.
Rubidium+1 (which is what is in an additive) is very stable and will not oxidize anything except lithium metal itself (even sodium ion will more readily oxidize things than rubidium ion).
it doesn’t make sense since it’s an alkali metal and hence a reducing agent!
Edit: it’s highly reactive.
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