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.