The Vespiary

The Hive => Chemicals & Equipment => Topic started by: paccman on October 05, 2004, 12:54:00 PM

Title: palladium on char.?
Post by: paccman on October 05, 2004, 12:54:00 PM
swim was wondering where swim might find palladium on charcoal for hydrogenation. can swim find this otc. or at some kind of hobby shop thankks
Title: no
Post by: indole_amine on October 09, 2004, 02:26:00 AM
It is a specialty chemical - and very expensive, too. It is only used for chemical reactions involving hydrogen, usually (de-)hydrogenations, and has no other common applications that could serve as an excuse...

(think you will have to find a chem supplier to be able to buy it, nothing OTC...  ::) )
Title: One could make it. http://www.rhodium.ws/chemis...
Post by: Tdurden969 on October 09, 2004, 11:49:00 AM
One could make it.

https://www.thevespiary.org/rhodium/Rhodium/chemistry/pd-catalyst.faq.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/pd-catalyst.faq.html)



Title: sure - but it isn't very active when homemade
Post by: indole_amine on October 09, 2004, 05:33:00 PM
Yep - but the prepared Pd/C has a very low acitivity if not done right...

(carbon particle size/shape seems to play an important role, as well as how deep the Pd is merged into it)

Better use your time searching for a chem supplier that will sell you 10 or 25 grams of good quality Pd/C 10%! It is worth the hassle and high price, really.

And make sure you use the opportunity to ask for NaBH4 and LAH, too...  ;)


indole_amine