Potassium Ferricyanide 100g for Cyanotype Process

Description

Potassium Ferricyanide

Potassium Ferricyanide is a raw chemical and one of two main ingredients that make up the cyanotype process alongside Ammonium Ferric Citrate.

Another use is to make up bleach for use on prints or negatives.

If you are making Cyanotypes, you will need Ferric Ammonium Citrate 250g to make up your formula.

Cyanotype Formula

Measure 25g of Ferric Ammonium Citrate and add water to make it up to 100ml.
Measure 10g of Potassium Ferricyanide and add water to make it up to 100ml.
Make sure you fully dissolve both the chemicals.
In subdued light, mix the two solutions together.

This formula will make up 200ml of working solution, enough to coat roughly 50 sheets of A4. You should coat paper away from sunlight and leave to dry in the dark.

Our Notebook Scale is useful for measuring these small amounts.

Coated Prints

25g of Ferric Ammonium Citrate + 10g of Potassium Ferricyanide: will coat roughly 50 sheets of A4.

50g of Ferric Ammonium Citrate + 20g of Potassium Ferricyanide: will coat roughly 100 sheets of A4.

250g of Ferric Ammonium Citrate + 100g of Potassium Ferricyanide: will coat roughly 500 sheets of A4.

How To Make Cyanotypes

Now have a look at the full instructions, This is How You Make Cyanotypes. You might also be interested in our Parallax Cyanotype Kit. It has pre-measured Ferric Ammonium Citrate and Potassium Ferricyanide, 20 sheets of A5 Arches Platine Paper, a Foam Brush, Vinyl Gloves and full instructions. So, everything you need to get started!

Cyanotype Paper

Try our pre-coated Parallax Cyanotype Paper. Ready to use straight out the pack. Available in 20 sheets and 50 sheets.