HomeProducts
Pigments & Colorants REACH

Dichromium trioxide

CAS Number
1308-38-9
EC Number
215-160-9
Chemical Formula
Cr2O3
Molecular Weight
151.990 g/mol
Industries:Textile, Leather & PaperBuilding & ConstructionPrinting & PackagingRubber & TireCoatings, Adhesives, Sealants & ElastomersPlastics & Polymers

Description

Dichromium trioxide (CAS 1308-38-9 ) is a high-performance inorganic pigment valued for its exceptional heat stability and chemical resistance across demanding industrial applications. It delivers a durable, opaque green coloration that retains integrity under conditions where organic pigments would degrade. In coatings and industrial paints, it provides permanent green pigmentation for high-temperature finishes, military coatings, and camouflage applications. This material ensures color consistency under thermal stress, which is critical for specialized surface treatments. Rubber and tire manufacturers incorporate it to achieve stable green coloration in technical rubber compounds without compromising vulcanization chemistry. This ensures the final product maintains its physical properties while achieving the desired aesthetic. Plastics processors use it to pigment engineering polymers that undergo high-temperature extrusion or molding. In these environments, organic alternatives would typically discolor or break down, making this inorganic pigment the preferred choice. Printing inks for packaging and decorative laminates also rely on it for lightfast, chemically resistant green shades. Its stability ensures that printed materials remain vibrant even when exposed to harsh environmental factors or chemicals. Dichromium trioxide is supplied as a fine, dry powder in technical and pigment grades. Standard specifications include varying particle size distributions and tinting strength classifications to match specific coating, rubber, or plastics processing requirements. Bulk supply is available in bags and bulk containers, with pigment-grade material typically meeting established industry purity benchmarks. This ensures consistent performance across large-scale manufacturing and industrial chemical applications. Contact us for supply of Dichromium trioxide Request Quote

Other Names (Synonyms)

Chromia | Chrome oxide green | Oxo(oxochromiooxy)chromium | Chromium(iii) oxide | E410

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point2435 °C
Boiling Point4000 °C
Density5.22 g/cm³ @ Temp: 25 °C
Flash Point3000°C
AppearanceChromium oxide is a bright green, odorless powder
ColorPale to dark green
Odorat 100.00?%. odorless
Formpowder
Water SolubilityInsoluble
Refractive Index2.551

Safety & Handling

Danger
GHS07· IrritantGHS08· Health HazardGHS09· Environment

Hazard Statements

H302Harmful if swallowed
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H360May damage fertility or the unborn child
H372Causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P233Keep container tightly closed.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P316Get emergency medical help immediately.
P364Take off contaminated clothing and wash it before reuse.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28199090
Storage Class11 - Combustible Solids