Convert TF-2 to a rapid fix with the addition of ammonium chloride
Posted: Mon Oct 10, 2016 3:35 pm
Hi Guys,
The TF-2 alkaline fixer formula given in the Cookbook uses Sodium Thiosulphate, a conventional fixer. It is recommended for modern tabular grain emulsions to use a rapid fixer. As with acid fixer recipes, is it possible to add ammonium chloride 1 part to every 4 parts hypo to make this into a rapid alkaline fixer?
The reason I ask is that in Australia it is very hard to find Ammonium Thiosulphate whereas Sodium Thiosulphate is commonly available. Also I don't know where you can get an off the shelf alkaline rapid fixer here in Meblourne, Australia.
Regards, Simon.
The TF-2 alkaline fixer formula given in the Cookbook uses Sodium Thiosulphate, a conventional fixer. It is recommended for modern tabular grain emulsions to use a rapid fixer. As with acid fixer recipes, is it possible to add ammonium chloride 1 part to every 4 parts hypo to make this into a rapid alkaline fixer?
The reason I ask is that in Australia it is very hard to find Ammonium Thiosulphate whereas Sodium Thiosulphate is commonly available. Also I don't know where you can get an off the shelf alkaline rapid fixer here in Meblourne, Australia.
Regards, Simon.