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Ferric is a term that means containing or having to do with iron
Iron

Iron is a chemical element with the symbol Fe and atomic number 26. Iron is a Group 8 element and period 4 element. Iron is lustrous and silvery in color....
, derived from the Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 word ferrum, meaning "iron". In chemistry
Chemistry

Chemistry is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions....
 the term is reserved for iron with an oxidation number
Oxidation number

The oxidation number of a central atom in a complex is the charge that it would have if all the ligands were removed along with the electron pairs that were shared with the central atom....
 of +3, denoted iron(III) or Fe3+, whereas ferrous
Ferrous

Ferrous, in chemical science, indicates a bivalent iron compound , as opposed to ferric, which indicates a trivalent iron compound .Outside of chemical science, ferrous is an adjective used to indicate the presence of iron....
 indicates that it has oxidation number of +2 and is denoted iron(II) or Fe2+.

Ferric iron is relatively insoluble in water. A salt of ferric iron hydrolyzes water and produces iron(III) oxide-hydroxide
Iron(III) oxide-hydroxide

A number of species are dubbed iron oxide-hydroxide. These chemicals are oxide-hydroxides of iron, and may occur in anhydrous or hydrated forms....
s while contributing hydrogen
Hydrogen

Hydrogen is the chemical element with atomic number 1. It is represented by the chemical symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly combustion and explosive Diatomic molecule gas with the molecular formula H2....
 ions to the solution, lowering the pH compared to a solution of equal molarity (based on the anion concentration) solution of the analogous sodium
Sodium

Sodium is an element which has the symbol Na , atomic number 11, atomic mass 23 amu , and a common oxidation number +1. Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" ....
 or potassium
Potassium

Potassium is a chemical element. It has the symbol K , atomic number 19, and atomic mass 39.0983. Potassium was first isolated from potash, hence the name....
 salt.

Ferric dosing can be used to mitigate the impact of nutrient loading in lakes by reducing the bioavailability of phosphorus in the water column.






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Ferric is a term that means containing or having to do with iron
Iron

Iron is a chemical element with the symbol Fe and atomic number 26. Iron is a Group 8 element and period 4 element. Iron is lustrous and silvery in color....
, derived from the Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 word ferrum, meaning "iron". In chemistry
Chemistry

Chemistry is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions....
 the term is reserved for iron with an oxidation number
Oxidation number

The oxidation number of a central atom in a complex is the charge that it would have if all the ligands were removed along with the electron pairs that were shared with the central atom....
 of +3, denoted iron(III) or Fe3+, whereas ferrous
Ferrous

Ferrous, in chemical science, indicates a bivalent iron compound , as opposed to ferric, which indicates a trivalent iron compound .Outside of chemical science, ferrous is an adjective used to indicate the presence of iron....
 indicates that it has oxidation number of +2 and is denoted iron(II) or Fe2+.

Ferric iron is relatively insoluble in water. A salt of ferric iron hydrolyzes water and produces iron(III) oxide-hydroxide
Iron(III) oxide-hydroxide

A number of species are dubbed iron oxide-hydroxide. These chemicals are oxide-hydroxides of iron, and may occur in anhydrous or hydrated forms....
s while contributing hydrogen
Hydrogen

Hydrogen is the chemical element with atomic number 1. It is represented by the chemical symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly combustion and explosive Diatomic molecule gas with the molecular formula H2....
 ions to the solution, lowering the pH compared to a solution of equal molarity (based on the anion concentration) solution of the analogous sodium
Sodium

Sodium is an element which has the symbol Na , atomic number 11, atomic mass 23 amu , and a common oxidation number +1. Sodium is a soft, silvery white, highly reactive element and is a member of the alkali metals within "group 1" ....
 or potassium
Potassium

Potassium is a chemical element. It has the symbol K , atomic number 19, and atomic mass 39.0983. Potassium was first isolated from potash, hence the name....
 salt.

Ferric dosing can be used to mitigate the impact of nutrient loading in lakes by reducing the bioavailability of phosphorus in the water column. This can aid management strategies for reducing eutrophication
Eutrophication

Eutrophication is an increase in chemical nutrients — compounds containing nitrogen or phosphorus — in an ecosystem, and may occur on land or in water....
 in lake systems.

Ferric oxide, formula Fe2O3 is red-brown colored and the main constituent of the mineral hematite
Hematite

Hematite, Spelling differences#Simplification of ae .28.C3.A6.29 and oe .28.C5.93.29 h?matite, is the mineral form of Iron oxide , one of several iron oxides....
.