BelliniFoto Sodium Sulphite (Anhydrous) ~ 1kg

BelliniFoto Sodium Sulphite (Anhydrous) is used to protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions, and in the creation of many forumlae for Caffenol developers

Click HERE for the Data Safety Sheet and ALWAYS use common sense when handling raw chemistry even more than you would with any other photographic chemistry