Salted paper / Silver diammine with fixer
REF #9Operating procedure
Prepare a silver diamine solution:
- Gradually add ammonia to the silver nitrate solution:
* until the solution turns black
* continue gently until the solution becomes transparent again
Float the sheet upside down on the saline solution for 2 minutes
Leave to dry for 30 minutes
Under inactinic light, coat the sheet with the silver diamine solution.
Leave to dry in the shade.
Expose (6 minutes).
Wash for 60+60 seconds.
KI solution bath, 2 minutes.
Wash for 30+30 seconds.
Fixer for 30 seconds.
Wash for 30+30+30 seconds.
Dry.
This method is more complicated than the one usually found.
If the edges are not stained as with NaCl or KBr, it is certainly because the traces are AgI (i.e. white on white).
In any case, this is the best result obtained with silver diamine/double bath.
- Gradually add ammonia to the silver nitrate solution:
* until the solution turns black
* continue gently until the solution becomes transparent again
Float the sheet upside down on the saline solution for 2 minutes
Leave to dry for 30 minutes
Under inactinic light, coat the sheet with the silver diamine solution.
Leave to dry in the shade.
Expose (6 minutes).
Wash for 60+60 seconds.
KI solution bath, 2 minutes.
Wash for 30+30 seconds.
Fixer for 30 seconds.
Wash for 30+30+30 seconds.
Dry.
This method is more complicated than the one usually found.
If the edges are not stained as with NaCl or KBr, it is certainly because the traces are AgI (i.e. white on white).
In any case, this is the best result obtained with silver diamine/double bath.
Consignes de sécurité
Be careful when preparing diluted ammonia: ammonia vapours are extremely irritating.