Description
Chrome Oxide Green 99% Pigment
Chrome Oxide Green 99% Pigment (CAS 1308-38-9, molecular formula Cr2O3) is a raw material for tile, sanitaryware, tableware and refractory production, where particle size and impurity profile drive fired colour and body strength. China Chemicals supplies it at 99% min in pack sizes from 1 kg through to 500 kg Pallet, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as Chromium(III) Oxide, Chrome Green, Pigment Green 17. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- Green colourant in ceramic glaze and porcelain enamel
- Heat-stable pigment in refractory and roofing products
- Camouflage and infrared-reflective coatings
- Metallurgical chromium and chrome metal production
- Polishing compound for precision optics
Technical specification
| Chemical name | Chrome Oxide Green 99% Pigment |
|---|---|
| Synonyms | Chromium(III) Oxide, Chrome Green, Pigment Green 17 |
| CAS number | 1308-38-9 |
| Molecular formula | Cr2O3 |
| Appearance | Bright green fine powder |
| Cr2O3 content | 99.0% min |
| Hexavalent chromium | 10 ppm max |
| Water solubles | 0.3% max |
| Loss on ignition | 0.5% max |
| Residue on 45 µm | 0.1% max |
| Oil absorption | 15 – 22 g/100 g |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 kg, 5 kg, 25 kg Drum, 500 kg Pallet. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: Not regulated · Causes eye irritation. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
What Is Chrome Oxide Green?
Chromium(III) oxide (Cr2O3, Colour Index Pigment Green 17) is one of the most stable inorganic pigments available. It is insoluble in water, chemically inert, and able to withstand extreme heat — its melting point is above 2400°C — without decomposing, which is exactly why it performs so well in ceramic glazes and high-temperature industrial coatings where organic pigments would simply burn out.
An Important, Accurate Safety Distinction
Chromium compounds exist in different oxidation states with very different toxicity profiles. Hexavalent chromium (Cr6+) is a recognised carcinogen, highly soluble and mobile in the environment. Trivalent chromium (Cr3+), the form in this product, is chemically far more stable and is not classified the same way. The practical issue is that trace hexavalent chromium can form as a manufacturing impurity in Cr2O3 production, which is why reputable suppliers specifically test for and certify hexavalent chromium content. Confirming this figure on your Certificate of Analysis is a genuine, meaningful quality check.
Applications
The primary application is ceramic glazes and tile, where it produces a range of greens from lime to deep kelly green, with shades adjustable using small additions of Cobalt Oxide and fluxing support from Zinc Oxide. It is also valued in paints, inks and glass for exceptional opacity and lightfastness, and in refractory bricks and mortars for its extreme heat stability.
Handling & Safety
Standard handling for Cr(III) compounds includes dust control, safety glasses, and avoiding inhalation or ingestion of fine powder, consistent with handling any fine metal oxide pigment. Always confirm the hexavalent chromium certification on your Certificate of Analysis before use, particularly for applications with consumer-contact or food-contact adjacency.
Frequently Asked Questions
Is Chrome Oxide Green the same as toxic hexavalent chromium?
No. This product is trivalent chromium oxide (Cr2O3), a chemically stable, low-hazard pigment, distinct from hexavalent chromium (Cr6+), the genuinely toxic, carcinogenic form. Reputable suppliers test and certify low hexavalent chromium content on every batch.
What colours can be achieved with Chrome Oxide Green in ceramic glazes?
A range from lime green to deep kelly green, and black, with shades adjustable using small additions of cobalt or copper oxide.
Why is Chrome Oxide Green used in refractories?
Its extremely high melting point (above 2400°C) and chemical stability make it suitable for high-temperature applications such as bricks, mortars and ramming mixes where organic pigments would fail.
What packaging and order quantities are available?
We supply from trial quantities through to full bulk orders. Contact us with your required volume for current pricing and lead time.
For further independent reference, see the Wikipedia entry on chromium(III) oxide, and browse our full Ceramic Chemicals range.
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