RE: Glyoxal?

Nope, the label in the bottle was clearly saying 37% formaldehyde (no
point or comma between 3 and 7 - and my close sight is pretty good as
I'm still young). No mould was formed in the Cyanotype solution A (I
still have some of it; it's 3 years old and clear...)

Regards,
Loris.

-----Original Message-----
From: Yves Gauvreau [mailto:gauvreau-yves@sympatico.ca]
Sent: 16 Ocak 2006 Pazartesi 17:34
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Glyoxal?

Loris,

I just look in my catalog and at another source and found the following.
The reputable chemical source ask $47.50 USD for a liter of Formaldehyde
37% solution, USP CAS 50-00-0 and the less reputable ask $5.00 for a
liter of Formaldehyde (37%). I'll let you conclude for yourself but for
me something is wrong here and this would be about right if the $5.00
product was for a 3.7% solution which is ten time less concentration.
Maybe, just maybe you have the $5.00 formalin and this could explain
your experience.

Regards
Yves
Received on Mon Jan 16 09:48:25 2006