I'll adress the questions I know something about:
Not a good idea, I think. Sea water doesn't only contain sodium chloride, it also contains sulfate, carbonate, and lots of other stuff in small amounts. It is quite possible (probable) that some of these will form insoluble compounds with the platinum. You're welcome to try, but I wouldn't risk platinum in seawater myself.Originally Posted by Annie
''Originally Posted by Annie
It won't explode. It won't give off dangerous gases. It won't eat flesh. But it seems very, very concentrated to me - are you sure it's 5 ml water? It will probably dissolve at room temperature if it dissolves at all.