Re: Sodium Carbonate (was Seeking Information on 2 problems with Gumprocess)

To: alt-photo-process-l@usask.ca
Subject: Re: Sodium Carbonate (was Seeking Information on 2 problems with Gumprocess)
From: Mark MacKenzie <mjmackenzie22@windstream.net>
Date: Thu, 01 May 2008 05:02:07 -0600
Comments: "alt-photo-process mailing list"
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Reply-to: alt-photo-process-l@usask.ca

Quite so. However, sodium bi-carbonate can be made into sodium carbonate by boiling for a period of time.

I would mark the original volume and top up with RO water after boiling.

Regards

Mark MacKenzie

----- Original Message ----- From: "Jeremy Moore" <jeremydmoore@gmail.com>
To: <alt-photo-process-l@usask.ca>
Sent: Wednesday, April 30, 2008 1:37 PM
Subject: Re: Sodium Carbonate (was Seeking Information on 2 problems with Gum process)

Sodium bicarbonate is not a chemical replacement for sodium carbonate,
but I have no idea what it will do in regards to cyanotype bleaching.
Arm & Hammer does make a Washing Soda that is sodium carbonate. If you
call the 1-800 on any of their boxes they can tell you the locations
in your zip code who stock the Washing Soda.