Cyanotype Process Chemicals
100g Potassium Ferricyanide + 250g Ferric Ammonium Citrate
Chemicals for creating cyanotypes prints. Cyanotype is a slow-reacting, economical photographic printing light-sensitive formulation, and it produces cyan-blue prints. The process used in this kit involves two chemicals - ferric ammonium citrate and potassium ferricyanide - and only water to develop and fix.
You can view the instructions here (pdf).
Prior to using these chemicals, please read the safety data sheets:
Potassium Ferricyanide - safety data sheet (pdf)
Hazard statements: EUH032: Contact with acids liberates very toxic gas.
Ferric Ammonium Citrate - safety data sheet (pdf)
Potential Acute Health Effects: Slightly hazardous in case of skin contact (irritant), eye contact (irritant), ingestion, and inhalation.