[alt-photo] Re: Trying to understand how ferric chloride reacts with gum arabic

[Kees Brandenburg]

Hi Katherine,

No, I did not try it. Idzerda himself also changed  rather quickly to the 'normal' gum technique in his publications. He might have run into problems that made him change insights.


Kees


On 8 dec 2010, at 17:05, Katharine Thayer wrote:

> Kees, have you ever tried this?  I have, several times, and have never been able to get a very satisfactory result, so have discounted the explanation (except that for me it was Maskell & Demachy, 1898, where I first saw this described).  My results were so contrary to what they described, added to the fact  that Demachy, like Idzerda, did not continue to use this method, that I've suspected that this isn't a reliably reproducible effect, whatever it is.
> Katharine