Formulary's Original Cyanotype Kit is one of the oldest photographic processes and one of the least expensive. Cyanotypes have a long full scale and distinctive blue color. The process can be used to produce a pale white image on a blue background or a blue image on a white background. This process is a contact print process and can be transferred to a variety of media; paper, cloth, leather, ect. This kit will produce 24 8x10 prints. Liquid kit comes packaged as 500 ml each of solutions A and B in black bottles. Chemicals Contained in this kit:

Chemical - Amount

Arrowroot starch - 20 grams For Sizing
Potassium ferricyanide - 40 grams Sensitizer B
Ferric ammonium citrate (green)* - 100 grams Sensitizer A
Potassium dichromate - 1 gram Contrast Control