This is an interesting read.
So do the formate ions bond to the AgX when the AgX is exposed to the formate or on exposure to light?
If it's on exposure to the formate then i'm guessing you could wash the plates after the formate soak in a similar way you do with ascorbic acid.
This may stop the colour shift after development if the shift is due to the extra material in the emulsion.
Are you aware of any superadditivity effects with ascorbic acid at all? May be interesting to try this.
Thank you very much for the paper, i'm going to try this out on my home made plates
Many Thanks
Grayham
This is an interesting read.
So do the formate ions bond to the AgX when the AgX is exposed to the formate or on exposure to light?
If it's on exposure to the formate then i'm guessing you could wash the plates after the formate soak in a similar way you do with ascorbic acid.
This may stop the colour shift after development if the shift is due to the extra material in the emulsion.
Are you aware of any superadditivity effects with ascorbic acid at all? May be interesting to try this.
Thank you very much for the paper, i'm going to try this out on my home made plates :)
Many Thanks
Grayham