Re: which dichromate

To: alt-photo-process-l@usask.ca
Subject: Re: which dichromate
From: Katharine Thayer <kthayer@pacifier.com>
Date: Fri, 09 Oct 2009 13:22:15 -0700
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Yes, if you're talking about saturated solutions, ammonium is faster.


On Oct 9, 2009, at 1:13 PM, Keith Gerling wrote:

Does anyone know a simple method of determining whether a substance is Potassium vs. Ammonium dichromate? I just started using a fresh batch of what is supposed to be Pottasium dichromate and now I'm getting very bad results: staining and what looks to be overexposure. Whatever it is, I am using a saturated solution. Isn't Ammonium dichromate "faster"?

References:
- which dichromate
  - From: Keith Gerling <keith.gerling@gmail.com>