Archived posting to the Leica Users Group, 1998/12/23

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Subject: RE: [Leica] Chemicals
From: "Lee, Ken" <ken.lee@hbc.com>
Date: Wed, 23 Dec 1998 08:05:37 -0500
 
Glen,

Thanks for the tip!

Ken

> -----Original Message-----
> From:	Glen M. Robinson [SMTP:gmrobinson@imation.com]
> Sent:	Tuesday, December 22, 1998 7:37 PM
> To:	leica-users@mejac.palo-alto.ca.us
> Subject:	Re: [Leica] Chemicals
> 
> 
>  I have tried to find something to seal the partially used
> concentrate bottles without success so far.  Do you have any suggestions?
> 
> 
> For many years I have sprayed the contents from Dust-Off or other such
> products into bottles of film and paper developer each time that they are
> opened.  This material is a chemically inert fluorocarbon and it displaces
> most of the oxygen from the bottle thus retarding oxidation of the
> developer.  The other common darkroom chemicals, such as fixer, do not
> need
> oxidation protection.
> 
> Glen Robinson
> 
> 
> 
> 
>