[pure-silver] Re: Fixer Stain Removal

The bichromate/sulphuric cleaner is for developer stains in trays etc.  That 
might stain clothes no?  Fortunately I still have some here (kodak and mohr 
brands) and it IS reusable for any out there who might make it.  Eventually it 
loses it's cleaning ability but there's no need to use and dump it.  
The Mohr Fixer cleaner I have for their processor lists sod. hydroxide.



________________________________
From: Richard Knoppow <dickburk@xxxxxxxxxxxxx>
To: pure-silver@xxxxxxxxxxxxx
Sent: Mon, November 9, 2009 3:45:04 PM
Subject: [pure-silver] Re: Fixer Stain Removal


     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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