Green Chrome Oxide Pigment

Green Chrome Oxide – Chromium Oxide Green Pigment (PG17)

Inorganic mineral pigment | Rich green colour | Pigment Green 17

TerraChrom Green Chrome Oxide is an inorganic mineral pigment based on chromium(III) oxide (Cr₂O₃), offering a rich green colour for compatible paints, coatings, and mineral-based materials. Also known as Pigment Green 17 (PG17), it is a finely divided pigment with approximately 99% chromium(III) oxide content.

With heat stability above 300 °C, fine particle size, and consistent colouring performance, Green Chrome Oxide is suitable for a wide range of decorative and technical formulations. Its fine powder form allows incorporation into compatible water-based, oil-based, and mineral binders.

Green Chrome Oxide can be used to colour limewash, decorative plasters, cementitious materials, paints, and coatings. Final colour, dispersion, and durability depend on the binder, pigment concentration, substrate, and application conditions.

Key Features

• Rich green mineral colour – Chromium(III) oxide pigment with a distinctive green tone.

• High pigment purity – Approximately 99% Cr₂O₃ content (typical value).

• Excellent heat stability – Stable above 300 °C under specified test conditions.

• Consistent colouring performance – Defined colour tolerances and relative tinting strength of 95–105% against a reference standard.

• Fine particle size – Predominant particle size of approximately 0.3 µm, supporting incorporation into suitable formulations.

• Versatile applications – Suitable for compatible paints, coatings, plasters, and cementitious materials.

• Dry powder form – Supplied as a finely divided green pigment for mixing into suitable binders.

Recommended Uses

• Limewash and mineral paints, subject to formulation testing

• Decorative plasters, stucco, and mineral finishes

• Acrylic and water-based paints

• Oil-based and alkyd paints

• Concrete, mortar, and cement colouring

• Primers, coatings, and sealers

• Interior and exterior decorative finishes, subject to finished-system testing

• Compatible resin-based applications, subject to testing

Technical Information

Pigment name: Green Chrome Oxide

Colour Index: Pigment Green 17 (PG17; C.I. 77288)

Pigment type: Inorganic chromium(III) oxide pigment

Chemical composition: Chromium(III) oxide (Cr₂O₃), approximately 99% (typical value)

CAS number: 1308-38-9

Colour: Green

Form: Dry green powder

Density: Approximately 5.2 g/cm³

Tamped density: 0.8–1.2 g/mL

Predominant particle size: Approximately 0.3 µm

pH: 5–7

Oil absorption: Approximately 11 g/100 g pigment

Water-soluble content: ≤0.3%

Water-soluble Cr(VI): ≤5 ppm

Heat stability: >300 °C (guide value under specified test conditions)

Relative tinting strength: 95–105% against a reference standard in titanium dioxide reduction (1:5)

Solubility: Immiscible with water

Mixing & Application

Green Chrome Oxide can be incorporated into compatible mineral, water-based, and oil-based binders to produce green paints, plasters, and decorative finishes.

For water-based paints and limewash, gradually incorporate the pigment using suitable wetting and dispersion methods to obtain an even colour. For cement, mortar, and dry mineral mixes, distribute the pigment thoroughly throughout the dry ingredients before adding liquids.

For oil-based paints and alkyd coatings, use an appropriate dispersion method compatible with the selected binder. Resin-based systems should be tested individually to establish compatibility.

Recommended pigment dosage: No universal dosage is specified. Determine the appropriate concentration through small trial batches, taking into account the desired colour intensity, binder, and application requirements.

Always prepare a small test batch to evaluate colour, dispersion, binder compatibility, and finished-surface performance before proceeding with a larger project.

Handling & Storage

Store in a tightly closed container in a dry location, protected from moisture, weathering, and extreme temperature fluctuations. Close opened packaging promptly to prevent contamination and moisture absorption.

Avoid generating or inhaling airborne dust. Ensure adequate ventilation and wear suitable eye protection and other protective equipment when handling the dry pigment.

Green Chrome Oxide is not classified as hazardous under the Canadian Hazardous Products Regulations (HPR), based on available product information. Standard precautions for handling mineral powders should nevertheless be followed.

Refer to the current TerraChrom Safety Data Sheet for detailed safety and handling information.

Technical Documents

Safety Data Sheet: English | Français

Tech Sheet: English | Français