Uranium compounds

[aman]

Does Uranium become a lot more stable when it is in a compound? Would it be possible to stablise some of the very heavy unstable elements made in Cyclotrons by quickly turning them into a salt?

Just aman

[YT2095]

no, sorry, the electrons are all that get effected in a salt combination, the neutron count (instability) remains the same

[fafalone]

Stable uranium compounds do exist

 

There's the CUO molecule I mentioned in a previous thread, and also (from WebElements):

Hydrides:

UH3: uranium (III) hydride

Fluorides

UF3: uranium (III) fluoride

UF4: uranium (IV) fluoride

UF5: uranium (V) fluoride

UF6: uranium (VI) fluoride

U2F9: uranium fluoride

U4F17: uranium fluoride

Chlorides

UCl3: uranium (III) chloride

UCl4: uranium (IV) chloride

UCl5: uranium (V) chloride

UCl6: uranium (VI) chloride

Bromides

UBr3: uranium (III) bromide

UBr4: uranium (IV) bromide

UBr5: uranium (V) bromide

Iodides

UI3: uranium (III) iodide

UI4: uranium (IV) iodide

Oxides

UO: uranium (II) oxide

UO2: uranium (IV) oxide

UO3: uranium (VI) oxide

U2O5: uranium (V) oxide

U3O7: uranium oxide

U3O8: uranium (V, VI) oxide

U4O9: uranium (IV, V) oxide

Sulfides

US: uranium (II) sulphide

U2S3: uranium (III) sulphide

Selenides

USe3: uranium (VI) selenide

Tellurides

UTe2: uranium (IV) telluride

UTe3: uranium (VI) telluride

Nitrides

UN: uranium (III) nitride

U3N2: uranium nitride

U2N3: uranium nitride

 

 

..the oxides are very stable, and uranium hexaflouride is generally stable in normal atmospheres.

[aman]

Another out of the box approach. If we took pure Uranium and put it into orbit around neutron star at an incredible speed, would we reduce it's decay relative to us and later knocked it out of orbit with another load, would it seem to have been stabailized for the period of time it orbited?

Just aman

[Cheetah]

If I understand your thought correctly, isn't that a question of relativity?

 

If the uranium moves at near light speed, and time then slows down, I would expect it to decay slower than uranium on Earth. Though it would only seem to have stabilized if it moves fast enough and for a short enough time for it not to decay.

 

Though I still don't understand what the neutron star has to do with this, so maybe I completely misunderstood your question

[YT2095]

Faf sure there are stable U compounds, but an unstable U isotope will not become more stable when made into a salt was my point

otherwise, you may treat stable U isotopes as any regular metal, the electron bonding does not affect the Nucleus however

[fafalone]

The ²³⁸U isotope (unbounded) has a halflife of over 2000 years I'd have to call that stable tho

[YT2095]

ok, my point is that making ANY U salt will still have the same instability as the original U metal.

making it into a salt will not make it more stable as an isotope (and I think that`s what he was after in the 1`st post).

the salt will be just as unstable as the metal. it maybe CHEMICALY stable sure, but it`ll not make it any the less radioctive

[aman]

What made me wonder about the stability being effected by electrons was the fact scientists will ionize krypton to make it less stable in Cyclotrons so it will free its protons and nuetrons easier.

I am just suggesting the reverse might be true and a U238 salt might have a half-life of 2000+ years because the electrons might have an effect on the protons which might then effect the neutron configurations. I couldn't find any data.

Maybe cooling it to 1deg K might have an effect on decay.

I wish I had a lab. Thanks for all your help.

Just aman

[wolfson]

N1=N2^e-^kt