Description
Ferric phosphate (ferric orthophosphate, iron (III) phosphate, FeP04xH2O) is an odorless, yellowish-white to buff-colored powder and contains from one to four molecules of water of hydration. It is prepared by reaction of sodium phosphate with ferric chloride or ferric citrate. It is insoluble in water and in acetic acid, but is soluble in mineral acids.
Chemical Properties
This is precipitated as yellowish-white FePO4.2H2O when a
solution of disodium phosphate is added to a solution of an iron(III) salt. It is soluble in mineral acids and decomposed by hot aqueous ammonia. The decolorization of iron (III)chloride solutions by phosphoric acid is due to the formation of colourless phosphato complexes, e.g. [Fe(PO4)3]6-.
Chemical Properties
Yellowish-white powder. D 2.87. Insoluble in water; soluble in acids.
Uses
Ferric phosphate is an inert white powder that is a source of iron and produces no discoloration or rancidity. It contains approximately 28% iron. It is used as a mineral supplement where rancidity is not a problem. It is used in frozen egg substitute, pasta products, and rice products.
Uses
Ferric Phosphate is a nutrient supplement that is an odorless, yellow-
ish white to buff-colored powder and contains one to four molecules
of water of water of hydration. it is prepared by reaction of sodium
phosphate with ferric chloride or ferric citrate. it is also termed iron
(ii) phosphate.
Uses
Fertilizers, feed and food additive.
Definition
ChEBI: An inorganic phosphate having Fe(3+) as the counterion.
Production Methods
Ferric phosphate is commercially produced through a controlled chemical reaction between an iron source, commonly ferrous sulphate or iron powder, and a phosphorus source such as phosphoric acid. In one widely used method, iron powder is directly reacted with phosphoric acid under carefully regulated temperature and pH conditions to ensure efficient precipitation of ferric phosphate. The reaction mixture is then subjected to impurity removal, often using agents like sodium sulphide to eliminate unwanted metals. Following this, the ferric phosphate is precipitated and crystallised, then filtered, dried, and milled to achieve the desired particle size and purity.
Flammability and Explosibility
Not classified
Mechanism of action
Contact action, interferes with calcium metabolism in slug / snail stomach causing it to stop feeding
Pesticide Type
Molluscicide
