RE: Why does cyanotype work?

From: Loris Medici ^lt;mail@loris.medici.name>
Date: 04/04/06-07:34:10 AM Z
Message-id: <003e01c657ec$7c4a4ba0$ce02500a@altinyildiz.boyner>

Barry,

Also
http://www.alternativephotography.com/books/mw_cyanotype.html
may help you much I presume. Anyone having this book? I was told that it
has very detailed information on the chemistry of the process...

Regards,
Loris.

-----Original Message-----
From: Breukel, C. (HKG) [mailto:C.Breukel@lumc.nl]
Sent: 04 Nisan 2006 Salư 16:17
To: alt-photo-process-l@usask.ca
Subject: RE: Why does cyanotype work?

Barry,

This should surely help:

http://www.mikeware.demon.co.uk/index.html#anchor930646

under

Technical Issues

Chemistry of the Iron-based Processes

Best,

Cor

> -----Original Message-----
> From: Barry Kleider [mailto:bkleider@sihope.com]
> Sent: dinsdag 4 april 2006 15:08
> To: alt-photo-process-l@usask.ca
> Subject: Why does cyanotype work?
>
> I've been teaching a high school chemistry class using the cyanotype
> process as our point for understanding chemical reactions.
>
> We've looked at the iron II and iron III states...
>
> We've talked about how potassium is the marker element for iron...
>
> I'm looking for a way to explain the photo-reactive properties of the
> process. I assume that the image formation is the result of a chemical

> reaction. (Am I right?) What does light do in this process? How?
>
> Is this a simple oxidation process? If we left a piece of treated
paper
> in the dark would it eventually turn blue also? Why does it leave an
> image?
>
>
> Thanks,
> Barry
Received on Tue Apr 4 07:28:21 2006

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