Hello Everyone, I just tried mixing (first time mixing anything from raw chemicals) the D-85 found on unblinkingeye.com. I followed the formula in the order shown, mixing each chemical in until fully dissolved. I also substituted the Paraformaldehyde for acetone. Nothing happened ! I left a test strip in the developer for 20mins, and nothing. I tried Ilford Multi FB paper (wasn't expecting it to work from what I read, but tried anyways) and Forte Poly warm tone FB (supposed to be lithable). I then left the test strips out (of the tray that is), with any developer left in it, over night. There has been a change in paper color (Forte is copper looking). Any ideas where I went wrong, and if I can add to or save the batch ? thanks steven D-85 Two Solution Lith Developer Solution A Water at 125° F 500 ml Sodium sulphite 36.5 g Boric acid crystals 9.4 g Hydroquinone 28 g Potassium bromide 2 g Water to make 1 litre Solution B Water at 90 ° F 500 ml Sodium bisulphite 11 g Sodium sulphite 1 g Paraformaldehyde 37.5 g Water to make 1 litre Mix solutions with good ventilation. Mix 4 parts A + 1 part B for use. You may substitute 82.5 millilitres of acetone for the paraformaldehyde.