[pure-silver] Re: Fishy developer
- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
- To: "'pure-silver@xxxxxxxxxxxxx'" <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 17 Dec 2004 10:07:44 -0500
The MSDS for DTPA that I looked at said that it had a slight ammonia odor. Pure
DTPA probably is odorless, the stated smell may be from some impurity.
Commercial grade triethanolamine contains ~10% diethanolamine which definitely
has an odor.
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-bounce@xxxxxxxxxxxxx]
On Behalf Of Ryuji Suzuki
Sent: Thursday, December 16, 2004 4:22 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: Fishy developer
From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
Subject: [pure-silver] Re: Fishy developer
Date: Thu, 16 Dec 2004 15:44:49 -0500
> I looked at the MSDS and the only ingredient listed that might have a
> slight fishy odor is the pentetic acid, pentasodium salt
> (diethylenetriaminepentaacetic acid, pentasodium salt). Amines are
> said to have either an ammoniacal or fishy odor. This chemical is
> used to chelate calcium and other metals in tap water.
DTPA is odorless. Not all amines are smelly. Triethanolamine has no odor either.
(But triethylamine does smell like fish.)
--
Ryuji Suzuki
"Keep a good head and always carry a light camera."
================================================================================
=============================
To unsubscribe from this list, go to www.freelists.org and logon to your account
(the same e-mail address and password you set-up when you subscribed,) and
unsubscribe from there.
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
