Re: Developer for Van Dyck Brown Process

From: Yves Gauvreau ^lt;gauvreau-yves@sympatico.ca>
Date: 02/23/06-03:24:44 PM Z
Message-id: <018201c638bf$91381ac0$0100a8c0@BERTHA>

Ryuji,

I just wanted a ball park figure and I have some test strip to get a
reasonable idea of the required amount. (after a few trials of course)

Regards
Yves

----- Original Message -----
From: "Ryuji Suzuki" <rs@silvergrain.org>
To: "alt-photo list" <alt-photo-process-l@sask.usask.ca>
Sent: Thursday, February 23, 2006 4:04 PM
Subject: Re: Developer for Van Dyck Brown Process

> On Thu, 23 Feb 2006 15:54:02 -0500, "Sandy King" <sanking@CLEMSON.EDU>
> said:
>
> > Just slightly acidic is ok. A pH of 6.0 - 6.5 should work fine.
>
> If you add a reasonably small amount of citric/acetic acid in water, the
> pH is probably much lower than 6.0, even if the quantity is 1 to 10g/L.
>
Received on Thu Feb 23 15:24:57 2006

This archive was generated by hypermail 2.1.8 : 03/13/06-10:42:58 AM Z CST