2007-12-30 02:54:30 · 3 answers · asked by Claudine A 1 in Science & Mathematics ➔ Chemistry
Sodium Ferrocyanide is the salt containing radical Fe(CN)64- (negative tetravalent); soluble in water but insoluble in alcohol. It is the main component of Prussian blue pigment, Fe4[Fe(CN)6]3, used for the manufacture of inks and paints and bluing in laundry and dyeing. It is used for removal of mercaptans from petroleum fuels and gas. It is used in making Sodium Ferricyanide (Red Prussiate of soda). Other applications include photography, tanning, explosives, metal treatments and snow treatment.
2007-12-30 03:02:57 · answer #1 · answered by spidermanmov2005 2 · 0⤊ 0⤋
Sodium ferrocyanide, also known as tetrasodium hexacyanoferrate or sodium hexacyanoferrate (II), is a coordination compound of formula Na4Fe(CN)6 which forms semi-transparent yellow crystals at room temperature, and which decomposes at its boiling point. It is soluble in water and insoluble in alcohol, and the solution can react with acid or photodecompose to release hydrogen cyanide gas.
In its hydrous form, Na4Fe(CN)6•10H2O (sodium ferrocyanide decahydrate), it is generally known as yellow prussiate of soda.
Uses
As yellow prussiate of soda, it is added to road and food grade salt as an anticaking agent. When combined with iron, it converts to a deep blue pigment which is the main component of Prussian blue. In photography it is used for bleaching, toning and fixing. It is used as a stabilizer for the coating on welding rods. In the petroleum industry it is used for removal of mercaptans.
2007-12-30 03:05:13 · answer #2 · answered by sacratez 1 · 0⤊ 0⤋
sodium is the anion, of +1 charge.
Ferricyanide is a complex cation, consisting of a Fe+3 ion which coordinates with 6 CN- ions.
Since this complex has a -3 charge, the compound would be Na3[Fe(CN)6]
2007-12-30 03:03:48 · answer #3 · answered by cattbarf 7 · 0⤊ 0⤋