[pure-silver] Re: Thiourea and Thiourea dioxide
- From: Ray Rogers <earthsoda@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Wed, 23 Feb 2011 08:03:01 -0800 (PST)
OK.
--- On Wed, 2/23/11, daniel <daniel.bouzard@xxxxxxxxxx> wrote:
From: daniel <daniel.bouzard@xxxxxxxxxx>
Subject: [pure-silver] Re: Thiourea and Thiourea dioxide
To: pure-silver@xxxxxxxxxxxxx
Date: Wednesday, February 23, 2011, 11:02 AM
CAS 1758-73-2 is for formamidine sulphinic acid wich is the other name for
thiourea dioxide.
You should read " I tried thiourea dioxyde and not sulfoxide "in my message.
Sorry for that mistake
Daniel
Le 23/02/11 11:45, Ray Rogers a écrit :
Sources I looked at gave different yet presumably equvilant structures for
those two cas #s
Thiourea is different.
???
Thiourea sulfoxide?
Did you mean thiourea dioxide rather than sulfoxide?
(Can you supply the CAS # for that?)
Ray
--- On Wed, 2/23/11, daniel <daniel.bouzard@xxxxxxxxxx> wrote:
From: daniel <daniel.bouzard@xxxxxxxxxx>
Subject: [pure-silver] Re: Thiourea and Thiourea dioxide
To: pure-silver@xxxxxxxxxxxxx
Date: Wednesday, February 23, 2011, 7:01 AM
Hello,
CAS 4189-44-0 and 1758-73-2 are both for thiourea dioxide under different
names. CAS 62-56-6 is for thiourea.
Several years ago I tried toning with thiourea sulfoxide following Tim book and
it worked very well.
Daniel Bouzard
Le 22/02/11 23:25, Eric Nelson a écrit :
I'm working from Tim Rudman's toning book and am playing with the FSA toner.
In it he lists thiourea dioxide to be used in the toning bath. Now I have
thiourea that comes from TechChem down in Missouri and called them to see what
flavor of thiourea I have. Bob called back and he found something odd in the
CAS listings.
TechChem's thiourea is CAS# 62-56-6
Thiourea dioxide has TWO CAS #'s which he says is "unheard of".
CAS# 4189-44-0 and CAS# 1758-73-2
Since Tim has been known to hang around these parts and others here may be more
familiar with the CAS catalog system, I'm wondering if these 3 compounds are
interchangeable or what?
Thanks
Eric
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