I Know this is an old thread but as it's just been linked to:
Originally Posted by Joseph
The Sodium Chloride is added as a mild silver solvent. Many years ago Iford published a leaflet suggesting adding Ammonium Chloride to certain of their developers to obtain finer grain but at the expense of a speed loss. It was published in:
ILFORD TECHNICAL INFORMATION SHEET P10
FINE GRAIN DEVELOPMENT
It's the same principal as the addition of additional Bromide to a warm tone print developers is to reduce the grain size in the print.
You can see that the amount of Sodium Chloride is high at 30gms per litre but it probably has a less side affects with regard to loss of shadow details etc.
Last edited by Ian Grant; 02-09-2005 at 04:09 PM. Click to view previous post history.