Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Oxone?
Paddywhacker
Hazard to Others
***




Posts: 478
Registered: 28-2-2009
Member Is Offline

Mood: No Mood

[*] posted on 15-7-2011 at 00:11
Oxone?


Where I live ammonium persulfate is cheaper and more easily available in larger quantities than oxone. Can it be substituted for oxone, for example in the preparation of Dess-Martin periodinane reagent?
View user's profile View All Posts By User
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 15-7-2011 at 07:15


I suspect it won't work as a direct substitution, as peroxodisulfate ("persulfate") is not the same as peroxomonosulfate ("oxone"), and these two oxidants will have different oxidising capabilities and kinetics (persulfate is actually quite kinetically stable - catalytic Ag salt can help this along, as can other additives).
View user's profile View All Posts By User
vulture
Forum Gatekeeper
*****




Posts: 3330
Registered: 25-5-2002
Location: France
Member Is Offline

Mood: No Mood

[*] posted on 15-7-2011 at 12:42


DFJ90, I thought persulfate, certainly ammonium persulfate, is quite unstable in solution, solutions generally don't keep long and decompose into ozone.



One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
View user's profile View All Posts By User
DJF90
International Hazard
*****




Posts: 2266
Registered: 15-12-2007
Location: At the bench
Member Is Offline

Mood: No Mood

[*] posted on 15-7-2011 at 12:45


Vulture: Thats not the impression I was given in the lab when working with potassium persulfate, but the ammonium salt may be entirely different. I'm sure you can find documentation of its relatively slow oxidative capability and also catalysts that increase the rate of reaction online. It is of course a strong oxidant, but not a very rapid one.
View user's profile View All Posts By User

  Go To Top