Ferric Hydrocyanic Acid: Properties, Uses, and Safety Precautions

Ferric hydrocyanic acid, also known as ferrihydrocyanic acid, is a compound with the formula [Fe(CN)6]. It is a dark green or brown solid that is soluble in water and is formed when iron salts are exposed to cyanide ions.

Ferric hydrocyanic acid is a strong reducing agent and can react with oxidizing agents such as chlorine or bromine to produce explosive compounds. It is also highly toxic and can be harmful if ingested, inhaled, or absorbed through the skin. Proper handling and safety precautions are necessary when working with this compound.

In terms of its chemical structure, ferric hydrocyanic acid consists of a central iron atom bonded to six cyanide ions (CN-) through coordinate covalent bonds. The cyanide ions are arranged in an octahedral geometry around the iron atom, with three cyanide ions on each side of the square planar ring. This arrangement gives the compound its unique properties and reactivity.