RE: Sizing paper with gum and dichromate

Yes, formalin is the 37% solution of formaldehyde in methanol + water. Since it is pretty obvious that we can't use it in gas form, I didn't used the term formalin which is a more specific and less known term.

Regards,
Loris.

-----Original Message-----
From: Christina Z. Anderson [mailto:zphoto@montana.net]
Sent: 26 Aralık 2005 Pazartesi 20:16
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Sizing paper with gum and dichromate

Absolutely right, Jack--it is a 37% solution...is it called formalin?? chris
----- Original Message -----
From: "Ryuji Suzuki" <rs@silvergrain.org>
To: "alt-photo list" <alt-photo-process-l@sask.usask.ca>
Sent: Monday, December 26, 2005 10:48 AM
Subject: Re: Sizing paper with gum and dichromate

> Formaldehyde is a gas at standard condition and the liquid form you
> see is an aquaous solution of the gas. This is probably what you are
> trying to relate to.
>
>
> On Mon, 26 Dec 2005 09:08:07 -0800, "Jack Fulton"
> <jefulton1@comcast.net> said:
>> Of course, I am not sure Chris, but I believe you might actually be
>> using 'formalin', which is 37% formaldehyde. I believe that
>> formaldehyde iin its pure form is difficult to obtain . . but I may
>> be incorrect.
>> Jack Fulton
>
Received on Tue Dec 27 02:31:37 2005