Ruthenium (new and improved)

I show a sample of ruthenium and talk about some of its uses. Then I do some aqueous ruthenium chemistry, traversing oxidation states from 8+ to 2+ and back.

[danl]

I see I am late to the party .. but excellent video, I learned a lot. Interestingly .. ruthenium seems to be in use in swimming pool clorine makers

[yesman]

Hey I hope you're fine.. waiting for new videos here

[NatureHacker]

I think its still +7, I think as soon as you added the persulfate it formed complexes making it dark and the addition of heat helped it to finish oxidizing to the +7. You can check that by passing the dark black solution through filter paper and you should collect some residue on the paper. We need an acidic way to dissolve ruthenium for electroplating.

[NatureHacker]

badpete81 thanks for the tip I just ordered CRC chem and physics 70th ed which is the last one edited by Weast! Super excited.

[elementguy]

Ah! Thanks! That confirms the possibility of the reaction.

[coopergates]

One volt? Hmm... RuO4 is an explosive under mild heat, I might expect its reduction to be stronger than that; reducing elemental bromine to bromide is +1.066 volts already.

[johnsheppard]

Well, don't like very much these two of PGMs-ruthenium and osmium due to their affinity to oxygen at high temperatures and also due to the complicated ways to get them out of solutions!I am actually in precious metals recovery and refining so I mostly like metals as pure metals and also I have some projects of firearms that involve much higher pressures than any conventional ones and so I am actually forced to get some PGMs involved and although I suppose that osmium metal will be added to the steel itself to increase it's rigidity but the main thing is that the barrel lining will be one of the key points so I am going to use either pure iridium metal or it's mix with 10% osmium if it will be better:yet now for the first tests I used pure iridium lining for the barrel-round test and it was successful(which was enormously doubted by the entire history of firearms and these doubts were also enforced by several failures of similar ideas in the past)-but I still can't find out how long will the system survive in this configuration and will it be better to use 10% osmium metal there..
But anyway:in terms of corrosion resistance iridium metal has no rivals in entire periodic table, and rhodium metal is closest to it:the most evident example of their supremacy is that they can be smelted from sponge without any flux in the presence of air:it's probably only two of them are actually that good!And as for iridium, it's even more exciting property is that above temperature of 1200°C it becomes totally resistant to all chemicals including fluorine gas at any higher temperature which is probably the most cruel and merciless thing that can be done to metal in terms of chemistry and so I don't know any other elements which can withstand the same torture without losing any of its weight and also the interesting thing is that in compact and pure form it is impossible to put it in solution by any wet chemistry:it can only be converted into a soluble forms with the most dreadful super reactive chemicals like molten potassium superoxide or hot fluorine gas which makes it clearly the king of noble metals!

[BadPete]

Arrow points both directions but youtube thinks that some HTML-code

[BadPete]

RuO4 + e^- --> RuO4^- = 1.00V

CRC Handbook of chemistry and physics 56th edition