Owltech said:button, in the making:
https://youtu.be/_DILKWccPQ8
Owltech said:button, in the making:
https://youtu.be/_DILKWccPQ8
4metals said:They don't call it laughing gas for no reason.
4metals said:It appears that the scene where you add sulfamic acid to de nox the solution you are doing it on a table which apparently is not under a hood. The reaction forms nitrous oxide, which isn't the best to breathe.
With HNO2, sulfamic acid reacts to give N2, while with HNO3, it gives N2O.
HNO2 + H3NSO3 → H2SO4 + N2 + H2O
HNO3 + H3NSO3 → H2SO4 + N2O + H2O
They don't call it laughing gas for no reason.
Hi!LT_golden said:Hi OwlTech,
Owltech said:button, in the making:
https://youtu.be/_DILKWccPQ8
That not-small-at-all button is ridiculous. I mean that in a grandly positive way, but just... ridiculous.
So I’m still recovering my gold for the first time, and studying up to refine/melt for the first time, too. I wanted to pour the molten gold into a cylindrical quartz mold, and I want to create the crystalline surface.
I was thinking, surround the mold with red-hot charcoal while I melt the gold, then after I pour, remove all the the pieces of charcoal closest to the mold, and just let the charcoal slowly die, thereby letting the gold cool slowly like that. Might take some time... but beers and snacks with friends makes for a shorter wait. :lol:
But I could think of a few questions...
1) Would I be able to get the crystalline surface, have no unattractive cavities, and still have the overall shape be that of the mold?
2) When the gold & quartz mold finally cool, would I have trouble removing the gold? Whenever Hoke mentioned using a quartz crucible she almost always said to just break it to get the gold.
3) In case I won’t be able to remove the gold from the quartz mold, what’s a safe way to break it without denting or deforming the gold...?
Thanks a lot for your help. I hope mine comes out as nicely as yours...!
Owltech said:Not much of a help, sorry!
I always leave my gold to solidify inside the crucible, then quickly pry it out before the borax solidifies
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