Chrome oxide green below the micron scale: higher surface area, deeper colour, new applications. GREEN 7710 is the catalogue answer wherever micron grades reach their limit.
The nano workhorse — engineered to 100–500 nm with excellent dispersibility, versus D50 0.7–10 μm for conventional chrome oxide green grades.
| GREEN 7710 · Nano | Conventional · D50 0.7–10 μm | |
|---|---|---|
| Particle size | 100 – 500 nm | D50 0.7 – 10 μm |
| Specific surface area | Large — active sites multiply | Small |
| Dispersibility | Excellent — no agglomerate islands | Requires dispersion milling |
| Colour depth | Deep, high-chroma at low loading | Standard |
| Application map | Catalysts, advanced ceramics, wear coatings | General pigments |
Every lot ships with particle-size and surface-area certificates — the numbers carrier and coating designers actually need.
Two orders of magnitude separate nano from conventional chrome oxide green — and every property changes with the scale.
The dashed cyan window is where GREEN 7710 lives. Below ~100 nm aggregation fights you; the conventional D50 range spans 0.7–10 μm. 100–500 nm is the engineered sweet spot.
Grind chrome oxide green two orders of magnitude finer and it stops being the same material.
Cutting particle size by a factor of ten multiplies specific surface area by roughly a hundredfold — active sites for catalysis, contact area for sintering, colour depth for pigments.
GREEN 7710 is engineered for dispersibility: no agglomerate islands to grind out in downstream processing, no settling surprises in suspension systems.
Below the micron scale, chromium oxide green leaves the pigment aisle entirely: catalyst carriers, advanced ceramics, wear-resistant coatings — markets micron grades cannot reach.
Four application families where the nano advantage pays directly.
Deep, high-chroma green at low loadings — for colour systems where micron grades leave visible grain.
High specific surface area multiplies active sites per gram; uniform dispersion keeps the extruded carrier homogeneous.
Fine, reactive powder for sintering aids and dense microstructures — consistent shrinkage, fewer defects.
Sub-micron Cr₂O₃ in thermal-spray and plating formulations builds harder, smoother, tougher films.
Certificate-backed parameters for GREEN 7710.
| Parameter | Typical value | Parameter | Typical value |
|---|---|---|---|
| Cr₂O₃ content | ≥ 99.0 % | Particle size | 100 – 500 nm |
| Specific surface area | High (certificate per lot) | Dispersibility | Excellent |
| Appearance | Fine green powder | Packaging | 25 kg bags · 1 t big bags |
| Compliance | REACH · RoHS · GB 18666 · nanoform documentation on request | Traceability | Lot-level CoA with particle data |
Read how the nano advantage plays out in real applications.
Tell us your target particle window and application — we propose a grade and send evaluation samples within one business day.
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