Level 1
Moderators: Jay2k1, DavidM, amh
<----Angelica
I've found this paper
http://ej.iop.org/links/q24/JxyQFyFx,BH ... 7p1258.pdf
and I shall have a look and see if I can find anything useful in it. I don't have an oven than reaches a high enough temperature to melt this, though.
I've found this paper
http://ej.iop.org/links/q24/JxyQFyFx,BH ... 7p1258.pdf
and I shall have a look and see if I can find anything useful in it. I don't have an oven than reaches a high enough temperature to melt this, though.
<----Angelica
I don't think I have the equipment for this, this is a biology lab. All that chlorine sounds nasty. Sorry.For Au, Walker (1970) has shown that Fe is removed from Au
wire when annealed at a temperature close to the melting point in a Clz atmosphere.
The explanation for this is that both AuCl and AuCI,, which are formed over the
temperature range 150 i T S 280 T, become unstable above 300 T and decompose.
Thus the chlorine leaves the gold unaffected above 300 ‘C (AuCI and AuCI, decompose
at 289.5 C and 265 ’C respectively). On the other hand, ferric and ferrous
chlorides are stable and volatile above this temperature; FeC13 boils at 319 ‘C and
FeCI, sublimes above this temperature. Practically, the gold is heated in vacuum till
above 300 -C and subsequently Cl, is allowed to enter the vacuum system, thereby
evaporating the Fe-Cl compounds. The method has been practised on Au wires with
diameters of 100 and 80 pm by Walker (1970) and Kopp (1975) respectively.
*appearsintheblinkofaneye*
Angelica, i have such a lab with the required equipment and contents on my home world, i can take you there if it would help, but you will have to research in 10 minute bursts as you couldn't survive the atmosphere there for much longer than that, unless you have a quaranteen suit and a bottle of oxygen for you to breath!
Angelica, i have such a lab with the required equipment and contents on my home world, i can take you there if it would help, but you will have to research in 10 minute bursts as you couldn't survive the atmosphere there for much longer than that, unless you have a quaranteen suit and a bottle of oxygen for you to breath!