Hi,

I'm about to try my hand for the first time at mixing my own chemicals for DIY c-41.
I have a recipe and most of the chemicals but am sourcing a few others & getting a bit confused.

My fixer recipe calls for "Ammonium Thiosulphate, 60%"
I'm wondering if I can use a different Ammonium product to substitute, as my local photo chemical supplier doesn't seem to have this.

They do however have a number of other ammonium products such as Ammonium Citrate, Ammonium persulphate and ammonium chloride.

Is it possible to use any of these?

My full fixer recipe is:

Ammonium Thiosulfate, 60% 240 mL
EDTA 2 g
Sodium Bisulfite 24 g
Sodium Hydroxide 5 g
Water to 2.0 L

Thanks,
Peter