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Iron Oxide

Fe₂O₃  |  FeOOH  |  Fe₃O₄  |  Fe₂O₃/FeOOH (blend)

Product Overview

Iron Oxide pigments are among the oldest and most widely used inorganic colour pigments — valued for their outstanding lightfastness, heat stability, opacity, non-toxicity, and weatherfastness across construction, coatings, plastics, cosmetics, and ceramics. Available in four principal colours based on chemical form and crystal structure: Red (α-Fe₂O₃, haematite), Yellow (α-FeOOH, goethite), Black (Fe₃O₄, magnetite), and Brown (mixed Fe₂O₃/FeOOH). MITCHEM exports synthetic iron oxide pigments to paint manufacturers, concrete producers, and cosmetic ingredient suppliers with full compliance documentation.

Iron Oxide Red

Fe₂O₃

Technical Specifications

FormulaFe₂O₃
CAS Number1309-37-1
Molecular Weight159.69 g/mol
AppearanceRed to dark red powder; density 5.26 g/cm³; haematite crystal structure
Available Grades95%+ Fe₂O₃ / High Purity 98%

Applications

Construction (Concrete Pigment)

Primary red-brown colouring pigment in concrete blocks, paving tiles, coloured concrete, and cementitious products; weather-fast and alkali-stable throughout service life.

Paints & Coatings

Used in anti-corrosion primers, roof coatings, marine coatings, and decorative paints; the outstanding lightfastness and UV stability of haematite red makes it suitable for exterior applications.

Plastics & Rubber Colouring

Heat-stable to 300°C+ makes it suitable for colouring engineering plastics, rubber goods, and high-temperature processing applications where organic pigments would degrade.

Cosmetics (CI 77491)

Cosmetic-grade iron oxide red (CI 77491) is used in foundations, blushers, eye shadows, and lipsticks as a skin-safe inorganic colourant with regulatory approval in all major markets.

Iron Oxide Yellow

FeOOH

Technical Specifications

FormulaFeOOH
CAS Number51274-00-1
Molecular Weight88.85 g/mol
AppearanceYellow powder; density 4.0 g/cm³; goethite crystal structure
Available Grades85%+ FeOOH / Synthetic grade

Applications

Concrete & Construction Pigment

Provides yellow to ochre coloration in coloured concrete, mortar, roof tiles, and paving — fully alkali-stable and weather-resistant in alkaline cementitious environments.

Decorative Paints & Coatings

Yellow and ochre shades in interior and exterior decorative coatings; provides excellent colour consistency and lightfastness for architectural applications.

Cosmetics (CI 77492)

Approved cosmetic colourant in foundations, concealer, and skin-tone cosmetic products; non-toxic, inert, and stable over broad pH range — safe for skin-contact applications.

Ceramics & Enamel

Used as a yellow-brown colourant in ceramic glazes, floor tiles, and vitreous enamel — decomposes to Fe₂O₃ red at high temperatures.

Iron Oxide Black

Fe₃O₄

Technical Specifications

FormulaFe₃O₄
CAS Number1317-61-9
Molecular Weight231.53 g/mol
AppearanceBlack powder; density 5.18 g/cm³; magnetite crystal structure; magnetic properties
Available Grades95%+ Fe₃O₄ / Synthetic grade

Applications

Concrete & Asphalt Colouring

Provides jet black to charcoal colouration in concrete tiles, paving stones, and asphalt mixtures; blended with red and yellow to produce brown and grey concrete shades.

Magnetic Ink & Recording Media

Fe₃O₄ nanoparticles are used in magnetic ink character recognition (MICR) printing for bank cheques and in legacy magnetic recording media.

Cosmetics (CI 77499)

Used as a black colourant in eyeliner, mascara, kohl, and eye shadow formulations; approved cosmetic colourant for eye area use in major regulatory markets.

Anti-corrosion Coatings

Applied in high-solid protective coatings for pipelines and structural steel, providing barrier protection and a neutral dark appearance compatible with topcoat application.

Iron Oxide Brown

Fe₂O₃/FeOOH (blend)

Technical Specifications

FormulaFe₂O₃/FeOOH (blend)
CAS NumberMixture
Molecular WeightVariable
AppearanceBrown powder; shade varies from yellow-brown to dark reddish-brown depending on blend ratio
Available GradesSynthetic blend grade / Technical

Applications

Construction (Coloured Concrete)

Brown shades achieved by blending red and yellow iron oxides or by use of specific synthetic brown grades for concrete blocks, pavers, and cementitious tiles.

Decorative Coatings & Stains

Used in wood stains, terracotta effect coatings, and earthy-tone interior and exterior decorative paints where warm brown colour palettes are required.

Ceramics & Pottery

Traditional brown colourant for stoneware pottery and floor tile glazes; produces warm amber and brown tones in oxidising and reducing kiln atmospheres.

Artist Colours (Burnt Sienna / Raw Umber)

Iron oxide brown pigments form the basis of artist's earth colours including Burnt Sienna, Raw Umber, and Burnt Umber in oil, acrylic, and watercolour paints.

Packaging Options

25 kg Paper Bags500 kg Jumbo Bags1 MT Super Sacks
✉  Request a Quote

Need a CoA, MSDS/SDS, or sample? Email info@mitchemindustries.com — full documentation available for all grades.

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