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Subject: Re: [DCHAS-L] ruthenium tetroxide and piranha solution
Date: Mon, 9 Sep 2013 21:24:05 +0000
Author: Jeff Tenney 		Next by Date:
Subject: Re: [DCHAS-L] ruthenium tetroxide and piranha solution
Date: Mon, 9 Sep 2013 22:30:30 +0000
Author: Jeff Tenney

From: Ernie Lippert <ernielippert**At_Symbol_Here**TOAST.NET>
Subject: [DCHAS-L] Piranha #3
Date: Mon, 9 Sep 2013 17:55:52 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 00f801ceada7$5af32170$10d96450$**At_Symbol_Here**toast.net


I suppose this is a #3 Piranha preparation. A drop of it on the end of a glass rod will ignite paper. Many years ago I prepared it by placing 2 or 3 crystals of potassium permanganate in the bottom of a test tube (probably 1cm x 10cm) and adding a single drop of concentrated sulfuric acid. After the initial explosive puff of manganese dioxide, the resulting liquid was a pretty strong oxidizer. I never made more than a drop of it.

 

Regards,

Ernest Lippert

 

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