Lifelong Learning Programme

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Title of the Experience
Revealed by cyanotype
Name of the student
L. Peris
Country where it took place
School typology
High Secondary School
Thematic Area
Chemistry, Other
Experience typology
Type of Experience
Description of the Experience
The cyanotype is an old photographic technique that gets a copy of images in blue.
The process is performed by mixing two chemicals : ferric ammonium citrate with potassium ferrocyanide. A photosensitive aqueous mixture is deposited on a surface (typically paper) and dried. Once dry, we can obtain an image by exposing the surface to sunlight using a negative . UV light reduces iron (III) to iron (II), producing an insoluble blue compound. The change in color depends on the amount of sunlight. The parts that were illuminated with sunlight insolubilize and the product where it has not given the light remains soluble. We conducted a final rinse and remains only the blue color.
This practice has allowed me to better understand chemical reactions and differences in solubility of chemical compounds . I've also learned a different way of revealing images.


Dissemination Seminar in Florence

31 October 2015 The seminar has been held in ITIS “A. Meucci” one of the schools involved within Goerudio project activities. Its main aim was to promote the results of the project toward a broad sample of stakeholders even overcrossing the number of people directly involved in the production of project outcomes. This purpose has been totally achieved especially thanks to the participation of students and teachers coming from different schools or from other classes instead of those ones directly involved within the project activities.