Iron III Hydroxide Formula: Definition, Structure, Properties

Iron III Hydroxide Formula has the chemical formula Fe(OH)3 and comprises iron, hydrogen, and oxygen. The color of iron III hydroxide varies from dark brown to black depending on its hydration, crystal structure, and particle size.  Iron III hydroxide is also known as ferric hydroxide.In humid conditions, iron(III) hydroxide is created due to rusting. Solid Fe³⁺ ions are produced from solid iron during this process, which involves the interaction of H⁺ and O₂. To accurately depict the various steps, net ionic equations must be formulated to ensure that both sides possess the same total charge. If state symbols are also included, a balanced net ionic equation for the transfiguration of metallic iron with hydrogen ions and oxygen molecules into Fe³⁺ ions can be given.

Characteristics of Iron III Hydroxide

Iron III Hydroxide Chemical Structure

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Properties of Iron III Hydroxide

• The color of Iron(III) Hydroxide can vary from yellow to dark brown to black, based on its degree of hydration, particle size and shape, and crystal structure.
• The formula for Iron Hydroxide is Fe(OH)3.
• The molar mass of this compound is 106.867g/mol.
• Iron III Hydroxide has a melting point of 135 degrees Celsius and a 4.25 grams per cubic centimeter density.
• Water is insoluble Iron III Hydroxide.

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Preparation of Iron III Hydroxide

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Natural Occurrences

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Uses of Iron III Hydroxide Formula

• Limonite, a combination of polymorphs and hydrates of ferric oxyhydroxide, is one of the oldest iron ores known to have been utilized since 2500 BC.
• Pigment Yellow 42, another name for Yellow iron oxide, has been approved by the Food and Drug Administration for cosmetics and tattoo inks.
• Additionally, nanoparticles of iron oxide-hydroxide have been used in aquarium water treatment as a phosphate binder and investigated as an adsorbent for removing lead from aquatic media.

Iron III Hydroxide Safety Hazards

• The possible risks associated with Iron III Hydroxide include inhalation of airborne particles which can irritate the eyes and/or respiratory tract. Short-term exposure could lead to further effects.
• When storing Iron Hydroxide, it is recommended to keep it away from heat sources and combustible materials, as temperatures above 356°F (180°C) may cause a gradual colour change in the product.
• Furthermore, contact with strong oxidising agents should be avoided.