Potassium ferrocyanide

Chemistry and homework help forum.

Organic Chemistry, Analytical Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Theoretical Chemistry, High School Chemistry, Colledge Chemistry and University Chemistry Forum.

Share your chemistry ideas, discuss chemical problems, ask for help with scientific chemistry questions, inspire others by your chemistry vision!

Please feel free to start a scientific chemistry discussion here!

Discuss chemistry homework problems with experts!

Ask for help with chemical questions and help others with your chemistry knowledge!

Moderators: expert, ChenBeier, Xen

Post Reply
Posts: 2
Joined: Tue Apr 28, 2020 2:15 pm

Potassium ferrocyanide

Post by glebyych »

Hello, I have a trouble finding any information about the K4[fe(cn)6] and k3[fe(cn)6] synthesis. Could anyone share the information about how these compounds are made
User avatar
Distinguished Member
Distinguished Member
Posts: 432
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

Post by ChenBeier »

The old method was to cook meat, blood, iron parts and pot ash together.
Today Calciumhydroxide, hydrogen cyanide and iron chloride react each other to Calciumhexacyanidoferrat. This will react with potassium carbonate.
The yellow one will be slightly oxidized to get them red one.

https://en.m.wikipedia.org/wiki/Potassi ... #Synthesis

Post Reply