Accident while mixing up Diafine

[jrong]

Feeling a bit stupid here. I was mixing up a batch of Diafine.... and mixing solution B with some warm water in my measuring cylinder when I managed to shatter my glass thermometer while using it as a stirrer. I know, bad idea, but it's too late now. :bang: There was a small amount of undissolved solution B powder at the bottom of the cylinder, as well as copious amounts of alcohol and blue dye, and bits of broken glass. I had to chuck out the contents of the cylinder along with the undissolved precipitate at the bottom, maybe about two teaspoons worth.

I have mixed up the rest of the solution B powder, I have just under a quart (~ 960 ml, I think I have approx 950ml) and now I am worried that the proportions aren't quite right, because of my accident with the thermometer. How will this affect my use of this Diafine batch, does anyone know?

Jin

 

[Freakscene]

All is not lost

All is not lost

You've learned a good lesson. Don't use your thermometer as a stirrer. It's for measuring temperature. Get a glass stirring rod.

What you have is probably fine, test it and see.

If it is not, Steve Anchell's "The Darkroom Cookbook" gives a "Diafine-type" formula:

Solution A:
Water at 125F/52C 750 ml
Sodium sulfite, anhydrous 35 grams
Hydroquinone 6 grams
Phenidone 0.2 grams
Sodium bisulfite 6 grams
Room temperature water to make 1.0 liter

Solution B:
Water at 125F/52C 750 ml
Sodium sulfite 65 grams
Borax 20 grams
Cold water to make 1.0 literThis solution B will work just fine with proprietary Diafine Part A.

Marty