[pure-silver] Re: Fixer Stain Removal
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Mon, 9 Nov 2009 13:45:04 -0800
----- Original Message -----
From: "Ralph W. Lambrecht" <info@xxxxxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Monday, November 09, 2009 10:56 AM
Subject: [pure-silver] Re: Fixer Stain Removal
I'm trying to clean the inside of plastic bottles, so, I
can try TC-3,
if I can get the chemicals listed.
Regards
Ralph W. Lambrecht
http://www.darkroomagic.com
If the bottles have crystalized hypo try ammonia or
even just plain hot water. The old TC-1, a bichromate and
sulfuric acid cleaner used to be the standard for laboratory
glassware and trays. Like a lot of other useful solutions
its not available anymore due to environmental
considerations. However, bichromate is used in a number of
alternative photographic processes so is obtainable and
sulfuric acid is, I think, a staple at swimming pool supply
stores.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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