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Re: Pinholes in HIE

  • From: George L Smyth <GLSmyth@xxxxxxx>
  • Subject: Re: Pinholes in HIE
  • Date: Sat, 14 Sep 1996 12:15:56 -0400
Kayo Matsushita wrote:
> 
> Thanks for the tip, George. I have looked at MSDS datasheets available on
> the Internet, and was wondering how reliable they are. Didn't know I could
> ask Kodak for it. For Indicator Stop Bath, there were three versions - two
> of them (dated 90 and 93) listed only water and acetic acid (this can't be
> right!), while another one also included Bromocresol Purple which I assume
> to be the indicator...anyways, thanks!

The version with just acetic acid should be valid.  There's a formula in
Steve Ancell's book that includes only water and citric acid.  The acid
part is the important thing.  

The MSDS sheets that come from the product manufacturer will be
accurate.  They have to be - if it's not they're breaking the law.

george

-- 
 Handmade Photographic Images     
  http://www2.ari.net/glsmyth

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Topic No. 14