U of S | Mailing List Archive | alt-photo-process-l | RE: vandyke solution- green flakes precipitated

RE: vandyke solution- green flakes precipitated

No your right, the gray sediment is what I thought you were getting. I have never seen the green flakes.

 

Scott B. Weber

Associate Professor of Photography

Department of Fine Arts

Barry University

11300 NE 2nd Avenue

Miami Shores, Florida 33161

(305) 899 4922 

 

From: david drake [mailto:daviddrakephoto@sympatico.ca]
Sent: Wednesday, April 23, 2008 7:26 AM
To: alt-photo-process-l@usask.ca
Subject: Re: vandyke solution- green flakes precipitated

 

Scott,

I guess I've made around 8 small bottles of VDB solution since I've started and I've never  seen this before. Are you actually getting green flakes? I also filter when I first make the solution but it's a grey sediment. These are flakes, some of which are bigger than 1/8 inch. 

 

thanks

david

 

 

On 22-Apr-08, at 10:34 AM, Weber, Scott B wrote:



David,

I use a double coffee filter to remove the flakes.

 

Scott B. Weber

Associate Professor of Photography

Department of Fine Arts

Barry University

11300 NE 2nd Avenue

Miami Shores, Florida 33161

(305) 899 4922

 

Sent: Monday, April 21, 2008 5:26 PM

Subject: vandyke solution- green flakes precipitated

 

I started to do some actual prints today and found that my vandyke solution had a fairly large number of green flakes in the bottom. I have not seen this before and don't remember reading anywhere about flakes. I'm guessing that it must be some iron precipitating out of the solution?

The solution was made in November 2007 and has been kept wrapped in black bag in the darkroom. It has not been refrigerated but the room never gets much above 70 degrees.

 

david

 

david drake photography

www.daviddrakephotography.com

 

 

 

david drake photography

www.daviddrakephotography.com