Total expenditure: $18 for the ethanol --- yield: approx. 5 teaspoons.
But I know what went wrong. When I added the ethanol to the water+NaHSO4 solution,
the latter recrystallized upon dilution with ethanol, which I mistakenly took for precipitation.
Right now I've been boiling a mixture of ethanol and NaHSO4 for 2 hours, and will
continue to do so. I still believe in the method. Perhaps this is wishful thinking on my part, but the alternative is dry destillation of FeSO4 in my
propane furnace *shudder*.
The irony of the whole damned think is that
I only need about a deciliter of sulfuric acid,
to make nitric acid out of it. (Goal being to
solve platinum in aqua regia, precipitate onto diatomaceous earth and henceforth
use good, old-fashioned burning of sulfur
using the contact method.
My nitric needs are still at least a week out
of fulfillment. I'm constructing a Birkemann-Eide reactor to make NO2 from air. The prototype, which was destroyed in an accident, proved that
the method works.
Sigh.axehandle - 29-1-2004 at 19:28
Much better yield this time. 0.1 liters of fumigating H2SO4.
I suspect that if the NaHSO4 was kept in
heated ethanol (say 70 degrees) and constantly stirred during a couple of days,
the yield would increase dramatically.
Birkemann-Eide reactor
Organikum - 30-1-2004 at 06:16
Whats this?
No Google results...
EGAD!
Hermes_Trismegistus - 30-1-2004 at 06:47
Quote:
Originally posted by axehandle
Much better yield this time. 0.1 liters of fumigating H2SO4.
I don't know what kind of termites you have but don't do it! If you fumigate with H2SO4 Your furniture will melt!axehandle - 30-1-2004 at 08:59
Fuming. It should read "FUMING", not "fumigating. Look, it was late and English is
only my second language.axehandle - 30-1-2004 at 09:04
Organikum: It's basically a lightning discharge
reactor that splits the bonds between the
O2 and N2 molecules in normal air.
N2 + O2 --> 2NO
NO has a strong affinity for grabbing an extra O out of eccess air, giving:
2NO + O2 --> 2NO2
which, combined with water, gives
2NO2 + H2O --> 2HNO3 + H2
The method was invented in 1905, I think,
and the only reason it's not used today is
that it's VERY energy hungry.
In my prototype I used a neon sign transformer to do the discharges, and
it worked. 9kV, 60mA. That's over 500W of
power. Main problem is to cool the electrodes and the reactor.BromicAcid - 30-1-2004 at 10:24
Quote:
2NO2 + H2O --> 2HNO3 + H2
Nitrogen dioxide usually reacts with water to form:
2NO2 + H2O <---> HNO3 + HNO2
This mixture decomposes and some of the HNO2 goes to NO and that will react with ambient oxygen and re-dissolve and so on and so fourth.axehandle - 30-1-2004 at 10:46
BromicAcid: The discharges form some O3 as well. But you're right. The end product, however, should be HNO3(aq), right?axehandle - 30-1-2004 at 10:49
Perhaps I should mention that my system uses 3 bubblers in series, with the gasses from the last one being blown out the window through a PVC tube.vulture - 30-1-2004 at 12:09
Can you please quit making new threads and posts?
To me it seems that you are insanely postwhoring! Why does this need a new thread?
with H2SO4 Your furniture will melt!