Chemistry Forums for Students > Inorganic Chemistry Forum

Help identify lanthanum product?

(1/2) > >>

Limpet Chicken:
Ok, one of my rare posts outside the citizen chemist forum ;D

Could anyone help identify the product from this experiment?

This was done with both lanthanum and cerium metal.
I had to use a spoon, as this was done in my bedroom as it is late at night;D
I liquify some pure ammonium nitrate prills, and while the nitrate is liquid, add in some small pellets of both lanthanum and cerium metal (in different spoons;D)

Continued heating the spoon, resulting in copious gas evolution (N2O I think)
the lanthanum was viciously attacked resulting in sparking and a small fire BENEATH the pool of liquified AN which quickly stopped.

*** Stop talking about eating Chemicals**--Mitch

Any ideas what this is? I don't see how an oxide of a metal could have a taste, as they are insoluble, maybe lanthanum nitrate via metal reduction of the AN?

Nitrous oxide was also a product I think, I ended up accidentally inhaling quite a bit of the fumes, and I feel kinda spaced out now as I type this :D

Mitch:
If you continue discussing eating unknown chemicals we're going to have to ban you for a week. We take serious responsible Chemistry especially responsible Citizen Chemistry.

Now stop tasting chemicals, geesh. At least don't tell us if you do.

Mitch

Donaldson Tan:
eeewwww..

 :footinmouth: :footinmouth: :footinmouth:

Limpet Chicken:
It was certainly accidental, I must have got some on my fingers, the fused ammonium nitrate got pretty messy, I dried it out by using a conc. aqeous solution of ammonium nitrate, added the lanthanum, and boiled dry, the damn thing kept flash boiling, in smll spots and spitting dirty brown sludge everywhere :-\

Tetrahedrite:
NO3- = oxidising agent, will not form La(NO3)3, will form La2O3 + nitrogen oxide (as observed). Both Ce2O3 and CeO2 also theoretically possible. Most rare earth oxides are grey or white, where as the nitrates range from colourless to bright green (Ce(III) nitrate) or even purple (Nd nitrate).

Navigation

[0] Message Index

[#] Next page