Submitted by Chip Nataro / Lafayette College on Wed, 05/29/2013 - 14:45
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Does anyone have experience working with this salt. In particular, I am looking for suggestions of how to store it properly. I have a 25.0 g bag of it and have to believe there is a better way to store it.

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Kyle Grice / DePaul University

Hi Chip,

I don't have experience with that particular BAr4 counterion, but keeping chemicals in a bag is just plain unsafe (ok, I know I've used sodium bicarb from a bag before, but that's pretty harmless). In my experience with similar BAr4 reagents, they are generally stable, and the major concern I would have is that the potassium would suck up ligands (water or other donors), thus messing up reactions when you use it.

I would definitely recommend repackaging your "Bag o' Counterion". I hope that's not the normal way companies ship the stuff, and I would also be sad/frightened if one of my students wrote "The compound was collected and stored in a plastic baggy" in their notebook/reports.

I would suggest putting it in a clean and dry brown glass container in a glovebox (unless you are using it outside the glovebox) after pulling vacuum on it overnight just to be safe.

Cheers,

Kyle

Mon, 06/10/2013 - 01:47 Permalink
Chip Nataro / Lafayette College

The MSDS indicates that this salt is impact and static sensitive. That with the crazy shipping just made me wonder. I put it in a bottle and we are keeping it in the box.

Mon, 06/10/2013 - 08:25 Permalink
Kyle Grice / DePaul University

Hmmm. Impact and static sensitive?  I do know that LiC6F5 detonates on isolation, thankfully not form actually witnessing it detonating, just from discussions about synthesis (note to everyone out there, think of a different way of installing a C6F5 group if you want it!). I hope its not as dangerous as things like perchlorate salts (I'm never going to use them, heard too many horror stories).

Tue, 06/11/2013 - 01:29 Permalink