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Ferric Oxide Formula

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Decoding the Formula: A Deep Dive into Ferric Oxide



Ferric oxide, a ubiquitous compound found in nature and widely used in various industries, holds significant importance in chemistry and material science. This article aims to provide a comprehensive understanding of ferric oxide, focusing on its chemical formula, different forms, properties, and applications. We will explore its significance beyond the simple formula, delving into its structural variations and practical implications.


Understanding the Chemical Formula: Fe₂O₃



The chemical formula for ferric oxide is Fe₂O₃, indicating that it comprises two iron (Fe) atoms for every three oxygen (O) atoms. This formula signifies a specific stoichiometric ratio, meaning the elements combine in a fixed proportion. The Roman numeral III in "ferric" explicitly designates the iron atom's oxidation state as +3. This means each iron atom has lost three electrons, contributing to the overall neutral charge of the compound. Contrast this with ferrous oxide (FeO), where iron has a +2 oxidation state. The difference in oxidation state significantly affects the properties and applications of the respective oxides.


Crystalline Structures: Hematite and Goethite



While the chemical formula remains constant, ferric oxide exists in various crystalline structures, each with unique properties. The most common forms are:

Hematite (α-Fe₂O₃): This is the most stable and prevalent form of ferric oxide, characterized by a rhombohedral crystal structure. Hematite is responsible for the red color in many rocks and soils, and its strong magnetic properties are exploited in magnetic recording media. A practical example is its use as a pigment in paints and cosmetics, providing a characteristic red hue.

Goethite (α-FeO(OH)): Although technically an iron oxyhydroxide, goethite is often grouped with ferric oxides due to its similar chemical composition and frequent occurrence alongside hematite. It possesses an orthorhombic crystal structure and is a major component of rust. Goethite’s less crystalline nature compared to hematite leads to differences in its magnetic and optical properties.

Other less common forms exist, such as maghemite (γ-Fe₂O₃), a cubic structure with ferrimagnetic properties, often found as a result of the thermal decomposition of iron hydroxides.


Properties of Ferric Oxide: A Multifaceted Compound



Ferric oxide's properties are dictated by its chemical formula and crystal structure. Some key properties include:

Color: Hematite typically exhibits a reddish-brown color, while goethite can range from yellowish-brown to dark brown, depending on the particle size and hydration level.

Magnetism: Hematite displays weak antiferromagnetic behavior at room temperature, meaning its magnetic moments are aligned in opposite directions, leading to a net zero magnetization. However, maghemite is ferrimagnetic, exhibiting a spontaneous magnetization.

Hardness: Ferric oxides are relatively hard minerals, making them durable in various applications.

Insolubility: Ferric oxide is generally insoluble in water but can dissolve in strong acids.


Applications of Ferric Oxide: A Diverse Range of Uses



The diverse properties of ferric oxide lead to a wide array of applications across various industries:

Pigments: Its vibrant color makes it an essential pigment in paints, coatings, plastics, and cosmetics.

Magnetic Recording Media: The magnetic properties of certain forms, like maghemite, are crucial in magnetic tapes and hard disk drives.

Catalysis: Ferric oxide serves as a catalyst in various chemical reactions, including the oxidation of carbon monoxide and the synthesis of ammonia.

Water Treatment: It's used as a flocculant to remove impurities from water.

Welding: Ferric oxide is a component in some welding fluxes.


Conclusion: Beyond the Formula



While the formula Fe₂O₃ provides a basic understanding of ferric oxide, a complete comprehension necessitates exploring its various crystalline structures, associated properties, and diverse applications. Understanding these nuances allows us to appreciate the significance of this seemingly simple compound in our daily lives and various technological advancements.


FAQs



1. What is the difference between ferric oxide and ferrous oxide? Ferric oxide (Fe₂O₃) contains iron in the +3 oxidation state, while ferrous oxide (FeO) contains iron in the +2 oxidation state. This difference leads to variations in their magnetic and chemical properties.

2. Is ferric oxide toxic? Ferric oxide is generally considered non-toxic at low concentrations. However, inhalation of fine ferric oxide dust can cause respiratory irritation.

3. How is ferric oxide produced? Ferric oxide can be naturally sourced from minerals like hematite or produced synthetically through various methods, including the oxidation of iron or the precipitation of iron salts.

4. What is the difference between hematite and goethite? Both are forms of iron oxide hydroxide but differ in their crystal structures (rhombohedral for hematite and orthorhombic for goethite), leading to differences in their properties.

5. What are some common uses of ferric oxide in everyday life? Ferric oxide is found in paints, cosmetics (providing red color), and rust (a common form of iron oxide).

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SAFETY DATA SHEET Synonyms : Ferric oxide Formula : Fe 2 O 3 Molecular weight : 159.69 g/mol CAS-No. : 1309-37-1

Red Iron Oxide - Eisen-Golden Red Iron Oxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations 01/05/2016 EN (English) 7 SECTION 11: Toxicological information 11.1. Information on toxicological effects

IRON (III) OXIDE FERRIC OXIDE, RED IRON OXIDE, IRON … 6 Dec 2004 · IRON OXIDE MATERIAL SAFETY DATA SHEET CARCINOGENICITY: No NTP: No IARC MONOGRAPHS: No OSHA REGULATE: No EMERGENCY FIRST AID PROCEDURES: INGESTION: Give at last 2 glasses of milk or water. Induce vomiting unless patient is unconscious. Call a physician. INHALATION: Remove to fresh air and give artificial …

Safety Data Sheet (SDS) - LPS Component Name CAS Number Formula Formula Weight Concentration Iron(III) oxide, red Synonyms: Ferric oxide, red; Ferric trioxide 1309-37-1 Fe2O3 159.69 SECTION 4 — FIRST AID MEASURES If exposed or concerned: Get medical advice or attention (P308+P313). If inhaled: Remove victim to fresh air in a position comfortable for breathing (P304+P340).

SAFETY DATA SHEET - neutronco.com Product Description: Iron (III) oxide - calcined Cat No. : I/1013/70, I/1013/60 Synonyms Ferric oxide CAS No 1309-37-1 EC No 215-168-2 Molecular Formula Fe2 O3 REACH registration number - 1.2. Relevant identified uses of the substance or mixture and uses advised against Recommended Use Laboratory chemicals.

MATERIAL SAFETY DATA SHEET - Oxford Lab Fine Chem FERRIC OXIDE BLACK 98% (Iron (III) Oxide Black) MSDS CAS: 1317-61-9 Section 1: Chemical Product and Company Identification Section 1: Chemical Product Product Name: FERRIC OXIDE BLACK CAS#: 1317-61-9 Synonym: Iron (III) Oxide Black Chemical Name: Ferric Oxide Black Chemical Formula: Fe 2 O 3 Brand: OXFORD Details Of The Supplier Of The Safety ...

Specification of Red Oxide - DPCI Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe2O3. It is one of the three main oxides of iron. Fe2O3 is the main source of the iron. It is used to put the final polish on metallic jewelry and lenses, and historically as a cosmetic.

SAFETY DATA SHEET - thermofishersci.in Synonyms Ferric oxide red CAS-No 1309-37-1 EC-No. 215-168-2 Molecular Formula Fe2 O3 Reach Registration Number - 1.2.

Technical data sheet Ferric oxide - armansina.com Chemical formula: Fe₂O₃ Molar mass: 159.69 g/mol General information Specification Appearance Reddish powder Cas- No. 1309-37-1 Assay ≥99.0 % ... Product name: Ferric oxide Grade: Laboratory Technical data sheet. SINA ISO 9001:2008 ISO 13485:2003 . Author: Amin Created Date ...

IRON OXIDES - Food and Agriculture Organization Produced from ferrous sulfate by heat soaking, removal of water, decomposition, washing, filtration, drying and grinding. of hues includes yellows, reds, browns and blacks. Food quality iron. the extent of chemical purification during the manufacturing process.

Determination of Iron as Ferric Oxide (Fe2O3 1- What is the effect of ammonium hydroxide addition to the ferric salt solution? Explain with equations? 2- What is the chemical formula of precipitated and salt iron?

Ferric oxide (pure red oxide) - chemeo.com Ferric oxide (pure red oxide) Inchi: InChI=1S/2Fe.3O InchiKey: JEIPFZHSYJVQDO-UHFFFAOYSA-N Formula: Fe2O3 SMILES: O=[Fe]O[Fe]=O Mol. weight [g/mol]: 159.69 Sources NIST Webbook: http://webbook.nist.gov/cgi/cbook.cgi?ID=B6004683&Units=SI Latest version available from: https://www.chemeo.com/cid/86-146-5/Ferric-oxide-pure-red-oxide.pdf

Material Safety Data Sheet - jscc.edu Ferric oxide MSDS Section 1: Chemical Product and Company Identification Product Name: Ferric oxide Catalog Codes: SLF1657 CAS#: 1309-37-1 RTECS: N07400000 TSCA: TSCA 8(b) inventory: Ferric oxide CI#: Not available. Synonym: Chemical Name: Not available. Chemical Formula: Fe2O3 Contact Information: Sciencelab.com, Inc. 14025 Smith Rd. Houston ...

SAFETY DATA SHEET - Fisher Sci Product Description: Iron (III) oxide - calcined Cat No. : I/1013/70, I/1013/60 Synonyms Ferric oxide CAS No 1309-37-1 EC No 215-168-2 Molecular Formula Fe2 O3 REACH registration number-1.2. Relevant identified uses of the substance or mixture and uses advised against Recommended Use Laboratory chemicals.

Material Safety Data Sheet - actylislab.com Ferric oxide MSDS Section 1: Chemical Product and Company Identification Product Name: Ferric oxide Catalog Codes: 10689 CAS#: 1309-37-1 RTECS: N07400000 TSCA: TSCA 8(b) inventory: Ferric oxide CI#: Not available. Synonym: Chemical Name: Not available. Chemical Formula: Fe2O3 Contact Information: Finar LImited 184-186/P, Chacharwadi Vasna,

SAFETY DATA SHEET Revision Date 03/02/2024 Version 6 Synonyms : Ferric oxide Formula : Fe 2 O 3 Molecular weight : 159.69 g/mol CAS-No. : 1309-37-1 EC-No. : 215-168-2 Component Classification Concentration iron(III) oxide <= 100 % SECTION 4: First aid measures 4.1 Description of first-aid measures If inhaled After inhalation: fresh air. In case of skin contact

SAFETY DATA SHEET - Fisher Sci 19 Apr 2010 · Product Name Iron oxide Cat No. : I119-500 CAS No 1317-61-9 Synonyms Magnetite; Triirion Tetroxide; Black Iron Oxide; Ferric Oxide Black Recommended Use Laboratory chemicals. Uses advised against Food, drug, pesticide or biocidal product use. Details of the supplier of the safety data sheet Emergency Telephone Number CHEMTRECÒ, Inside the …

Product Data Sheet Ferric oxide, red Cat. No.: HY-154696A CAS No.: 1309-37-1 Molecular Formula: Fe2O3 Molecular Weight: 159.69 Target: Biochemical Assay Reagents Pathway: Others Storage: Please store the product under the recommended conditions in the Certificate of Analysis. BIOLOGICAL ACTIVITY Description Ferric oxide, red can be used as an excipient, such as ...

Ferric Oxide Black MATERIAL SAFETY DATA SHEET CAS No … Synonyms : Ferric oxide Formula : Fe2O3 Molecular weight : 159,69 g/mol CAS-No. : 1309-37-1

SAFETY DATA SHEET Revision Date: 27/02/2024 ACCORDING … Product Name Iron Oxide (Fe2O3) Powder Synonyms Ferric oxide, Hematite (α-Fe2O3), Maghemite (γ-Fe2O3), Iron trioxide Chemical Name Iron (III) oxide Chemical Formula Fe2O3 CAS No. 1309-37-1 EC No. 215-168-2 Index No. Not …