Sorry about that… misunderstood ya. Thought you meant charge it before you ever drop it in for the reaction.
Not enough coffee… long night last night 
Idk why but I’ve never seen this done before. Can’t speak on it, only seen celite (usually tossed) and the filter scrape method (usually regenerated), but not a combination. Also don’t overdry.
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Yeah… keeping it damp is a must for storage
Use heptane and a 1 micron Ashless filter paper to get as much pd/c out as possible then crash then distill
No celite mess
If you really want to get the microscopic pd/c out of your ML you can filter the ML with heptane in it through a frit
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Not sure what ya mean by this?
just leave the palladium in the catalytic converter and hook it to your cls
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At first I read this as a joke being a gear head 
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its not that bad I think.
I have had it at 5% and it was stable in the air.
the problem is when it is in pure hydrogen
here is a vid of someone setting it alight and this is paladium black or pure
palladium powder.
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Pure H2 atmosphere with nothing else around to react with is actually inert.
But for example Pd/C stored dry in air will catalytically oxidize lower Alcohols, and potentially very quickly so → FIRE!
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of course sorry you need an oxidizing agent like the oxygen in the air.
still I think the video demonstrates that handling it is quite safe.
so I know of quite a few reductions and rearrangements that use palladium and
alcohol for there solvent.
5 grams morphine was dissolved in 50 ml of alcohol and after the addition of 0.5g of palladium black, the mixture was refluxed for 4 hours. After the catalyst wass filtered off and the solution concentrated, dihydromorphinone crystallized. Yield 3 grams.
https://www.erowid.org/archive/rhodium/chemistry/dihydromorphinones.html
how does this not set on fire for them then ?
having said that I have heard the same thing as you have stated alcohol and pd/c is no go.
is the palladium on carbon more reactive than palladium black due to surface area
being increase ?
This is matter of reactant concentration.
Look up my comment up above.
What happened in my glove bag is similar to the reaction in the video you shared, still in my case, O2 and H2 were dilute enough (5% H2 at most, versus some 0.1% O2) to not catch fire, and were rapidly consumed. The fog came from the water that the reaction generated.
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Also of general technique. Reactant addition order matters big time, sometimes!
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Because pellets are generally brittle, I believe such catalyst is rather used in a fixed bed.
Regarding the reclaim, pellets are very easy to retrieve from the reacting liquor.
How often a regeneration is necessary actually depends on the process employing the catalyst and on the substrate as well.
The catalyst can be altered in various way.
In the use for O2 scrubing, the main alteration that occurs is that it get wet and loose efficiency. Simple drying regenerates it. Here it is a simple redox reaction between two gases.
Still, in other kind of reaction, the Pd catalyst can undergo passivation (could be hydroxides, carbonates, or metal precipitates forming at it surface), be partially oxidized, or some form of interacalation of atoms from reacting soup within its structure can occur… in that case it may require various form of treatment (acid leaching, reduction, heat treatment…).
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So best to keep it “wet” and inert for storage.
But don’t most of the ones we are seeking for cannabinoids involve either methanol or running it neat?
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that was my point @Heisenbergind I understand how hydrogen
is alight as the PGM metal absorbs the hydrogen and splits
it from its stable twin or H2 state which makes it very reactive.
hence why it works as a reducing cat.
(that is probably an old way to look at it. I got my arse handed
back to me when I said nascant hydrogen once before.
now its an electron exchange or what ever. personaly
I dig the nascant hydrogen its so much easier to visualize)
but I gave a reaction to make wonderful dilauded there
that uses ethanol.
there are quite a few reductions as well that use methanol
and ethanol as there solvent with pd/c as well.
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Holy shit
That’s fascinating.
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hold on I am not saying that if you chuck a heap of pd/c in ethanol
it will not go up in flames just I have ref of others using the
two together.
until I try and get the stuff to light as I did with it in the air
(no im not the guy in the vid) I can not state it will
or will not just there is reference to it being done.
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