Create beautiful, archival blueprints with Jacquard Potassium Ferricyanide for Cyanotype Printing, 8 oz. This light-sensitive chemical compound is one of the two essential components in the classic cyanotype process, used to produce deep Prussian blue photographic prints on paper, fabric, or other porous surfaces. When combined with ferric ammonium citrate, it forms a UV-reactive solution that develops in sunlight and fixes with water, requiring no darkroom. Ideal for artists, photographers, and educators, this 8 oz package provides ample material for creative and experimental printing. Jacquard Potassium Ferricyanide is trusted for consistent results, vibrant color, and high purity, making it a go-to choice for traditional blueprinting, alternative photography, and scientific art exploration.