Potassium ferricyanide(II) 20% (yellow blood liquor salt) is a high quality laboratory chemical, consisting of 200 g potassium ferricyanide(II) and 1000 ml aqua bidest (ultrapure water). The chemical compound, also known as yellow blood liquor salt, is used in various analytical and practical applications.

Due to its ability to form complex compounds, potassium ferricyanide(II) is used in analytical chemistry, for example, in the identification and quantification of iron ions in solutions. In addition, it can be used in the field of electrochemistry to study electrode processes or as a reducing agent in redox reactions. Its complexation property also allows it to be used in photographic technology, dye industry, preparation of printing plates and in the production of pigments.

When potassium hexacyanoferrate(II) is used, complexes are formed in which the central atom (typically a transition metal) is surrounded by ligands (in this case cyanide ions). This coordinative bonding can lead to the formation of stable compounds, which are of great importance for the applications mentioned above.

Possible results of the application of potassium hexacyanoferrate(II) depend on the reaction in question. For example, in the case of iron analysis, due to the intense color of the complexes formed, both qualitative and quantitative analyses can be performed to detect the presence of iron ions in a sample. In electrochemistry, potassium ferricyanide(II) as a reducing agent supports the study of electrode processes and the optimization of electrochemical procedures.