10-1189 10 g, 10-1189 100 g, 10-1189 1 lb, 10-1188 5 lb, 10-1187 10 lb, 10-1186 20 lb, 10-1185 50 lb
Posted by Michel Hardy-Vallée on 6th Oct 2020
Remember kids, most formulas ask for Sodium Carbonate Monohydrate, although some Kodak formulas also indicate a weight for Sodium Carbonate Anhydrous (this product).
If you're reading this too late, just multiply the weight of Monohydrate you need by 106 and divide by 124 (or just use 0,85483871). The resulting amount of Anhydrous should be slightly inferior to the required amount of Monohydrate.
Posted by Geoff Hartmann on 29th Dec 2015
I trust that the chemicals sold by Photohraphers' Formulary are of a quality sufficient for all photgraphic work. I have always been satisfied with my results. Pricing and service are the best to be found. I do not need, nor do I want to pay exorbitant prices for analytical reagents. On the other hand, I am not going to buy cheap versions intended for ceramic glazing or for use as a laundry additive (washing soda), the chemical purity and water content of which is unknown. I just purchased 5 lbs., as it gets used up quickly.