Varungh - 11-11-2025 at 03:21
I wish to create a soluble lead compound. I thought of 2 of the ways. Will any of these work? If yes how long shall it take?
A) add vinegar to PbO2 and then add a bit of ethanol. Apparently PbO2 can oxidize primary alcohol to aldehyde so i think this may work in reducing
PbO2 so acetic can form acetates.
B) add PbO2 to saturated NaOH solution. It is amphoteric so it should do the trick. The NaOH should make the plumbate ion. I am concerned it will be
slow as it is at room temp and it is approx 15-20C at my place.
So i have a question
How long will either take at room temperature?
Is there another accessible way to do this?
RU_KLO - 11-11-2025 at 11:32
there are a lot of post of lead salts, try to find some.
but, nitric acid is for me the fastest way to make soluble lead salt (in this case Pb(NO3)2).-
WARNING: POISONOUS SALTS, SOLUTIONS AND GASES
USE PROPER SAFETY EQUIPMENT, DO IT IN FUMEHOOD (OR OUTSIDE); and if large quantities, HAVE A PROPER DISPOSAL STRATEGY.
regarding using vinegar (or acetic acid):
"Acetic acid with hydrogen peroxide can dissolve Pb quickly and, under some conditions, in a matter of minutes"
"Three conditions are identified for fast Pb leaching: 1) diffusion of H2O2 should be maximized, 2) oversupply of CH3COOH and H2O2 should be used with
a minimum molar ratio of 2:1 for H2O2
b, and 3) for a given H2O2b ratio, a leaching solution volume to Pb mass ratio of 0.005:1 L/g should be used. "
"Lead leaching and electrowinning in acetic acid for solar module recycling"
by Natalie Click, Randy Adcock, Theresa Chen, Meng Tao
https://doi.org/10.1016/j.solmat.2023.112260
Alkoholvergiftung - 11-11-2025 at 12:56
better to mix acetic acid and h2o2 with an drop sulfuric acid and make Peracetic acid there is an video on youtube that stuff is as good as HNO3 .
https://www.youtube.com/watch?v=gV77aZLDQJw
[Edited on 11-11-2025 by Alkoholvergiftung]
[Edited on 11-11-2025 by Alkoholvergiftung]
MrDoctor - 11-11-2025 at 20:03
i think you can quickly dissolve lead provided you use a divided cell to stop the Pb migrating to the cathode, i know ive seen this done for copper,
using sintered glass coating the cathode or even just plaster (according to someone more knowledgeable than myself), but with some additives to ensure
conductivity.
has anyone tried using AC instead of DC to try dissolving lead in acetic acid though? and then doing something to bias the oxidation/dissolution over
the plating out again.