Submitted by Sibrina Collins / Marburger STEM Center (MSC) at Lawrence Technological University on Thu, 07/11/2013 - 10:44
Forums

Dear VIPEr Colleagues,

I hope all is well. One of my colleagues is doing some kinetic experiments using solutions of copper perchlorate. However, they have two bottles of copper perchlorate, an old one (2 years old) and a new one purchased last month. But the results are inconsistent. Is there a simple measurement/experiment that they could do to determine if the two bottles actually have the same material? Anyone have experience with copper perchlorate?

Thanks,

Sibrina

Barbara Reisner / James Madison University

If it's crystalline and you have access to PXRD, you could try that. I can't say I have any experience with copper perchlorate. I've tended to avoid perchlorates.

Thu, 07/11/2013 - 11:30 Permalink
Kyle Grice / DePaul University

Well, it might just be a matter of an impurity. Maybe have a purification method that you do to every batch that you use, and store them in the same place.

Is there a chance that it could have degraded to form oxides, of if you are using Cu(I), some could have been oxidized to Cu(II).

But yeah, I also avoid Perchlorates based on all of the horror stories I have heard (people losing fingers, getting other horrible injuiries).

Fri, 07/12/2013 - 14:43 Permalink