OUTLASTING THE ELEMENTS FOR YOUR PRODUCTS
Sun, rain, frost and decades of exposure — chrome oxide green keeps its colour when everything else fades. VerdeChrome engineers the world's most durable green for your products.
Sun, rain, frost and decades of exposure — chrome oxide green keeps its colour when everything else fades. VerdeChrome engineers the world's most durable green for your products.
VerdeChrome builds the chrome oxide green pigments modern manufacturers rely on. From refractory-grade grits to high-chroma micronized powders, we make sure your colour ships on spec and fades nothing. 31 years of specialization, zero surprises.
Five engineered series under two brands — DELIKECOLORS for pigment grades, DELIKEOXIDE for refractory and industrial grades. Every model ships with full Cr(VI) disclosure and batch-level traceability.
Standard™ — GREEN 1000 · 1001 · 1002
MicroPowder™ — GREEN 1025 · 1061 · 1062 · 1071 · 1072 · 1073
NIR Colors™ — GREEN 1030 · Nano — GREEN 7710
High-chroma green for paints, plastics, construction and camouflage systems. Full-shade and tint-shade colour chips, interactive colour atlas inside.
View details → 02Regular — G-5001 · G-5002 · G-5003 · G-5006
Low Cr(VI) — G-5891 · G-5899 · G-5996 · G-5070
Sintered grits for chrome-magnesia and high-alumina bricks, castables and furnace linings. Two purity tiers to match your Cr(VI) ceiling.
View details → 03Aluminothermic smelting feedstock
Cr₂O₃ + 2Al → 2Cr + Al₂O₃Controlled particle gradation and low-impurity chemistry for stable metallic-chromium smelting yields.
View details → 04Micronized — GREEN 1025 and matched grades
Mohs 8.5 – 9 Sub-micronPolishing and grinding grades for high-end honing, superfinishing and precision optics. Narrow particle distribution, zero scratches.
View details → 05Ultrafine Cr₂O₃ — GREEN 7710, 100–500 nm
100–500 nm High surface areaUltrafine chromium oxide for specialty pigments, catalyst carriers and advanced ceramics. Custom particle engineering on request.
View details → 06Electronic-grade Cr₂O₃ — EG-99 / EG-99H, Na₂O ≤ 50 ppm
View details →| Series | Brand | Models | Particle size | Cr(VI) control |
|---|---|---|---|---|
| Refractory — regular | DELIKEOXIDE | G-5001 · G-5002 · G-5003 · G-5006 | D50 1.2 – 8 μm | ≤ 200 ppm |
| Refractory — low Cr(VI) | DELIKEOXIDE | G-5891 · G-5899 · G-5996 · G-5070 · G-5073 | D50 0.1 – 8 μm | ≤ 5 ppm |
| Pigment — Standard™ | DELIKECOLORS | GREEN 1000 · 1001 · 1002 · 1020 | D50 1.0 – 2.0 μm | ≤ 10 ppm |
| Pigment — MicroPowder™ | DELIKECOLORS | GREEN 1025 · 1061 · 1062 · 1071 · 1072 · 1073 | D50 ≤ 0.5 μm | ND (not detected) |
| Pigment — NIR Colors™ | DELIKECOLORS | GREEN 1030 · 1031 | D50 1.0 – 2.0 μm | On request |
| Pigment — Nano Series™ | DELIKECOLORS | GREEN 7710 (100–500 nm) | D50 100 – 500 nm | On request |
| Smelting — metal chromium | Metallurgical | Aluminothermic feedstock | Custom window | Custom |
| Abrasive — micronized | DELIKECOLORS | GREEN 1025 and matched grades | Tight D50 window | On request |
| Nano — ultrafine | Specialty | D50 < 100 nm | < 100 nm | Custom |
| Property | Value | Property | Value |
|---|---|---|---|
| Formula | Cr₂O₃ · C.I. Pigment Green 17 (77288) | Heat stability | 982 °C |
| CAS No. | 1308-38-9 | Migration resistance | 5 |
| Lightfastness (full / tint) | 8 / 8 | Warpage rating (plastic) | 1 |
| Weatherfastness (full / tint) | 5 / 5 | Overpaint resistance (paints) | 5 |
| Full shade system | 1 : 1 alkyd resin / melamine | Tint shade system | 1 : 10 TiO₂ |
Precision Chrome Innovators — diversified manufacturing routes, industry-leading Cr(VI) stewardship and data-driven quality systems.
We master diversified Cr₂O₃ production technologies — Chromium Chromate, Chromic Anhydride and Sodium Dichromate routes — to precisely tailor cost structures, pigment chromaticity, crystalline phases and particle gradation for application-specific requirements.
Through proactive stewardship in Cr(VI) mitigation, we implement Jirong® Cr(VI) Suppression Technology — a proprietary process achieving non-detectable hexavalent chromium, addressing carcinogenic potency (IARC Group 1) while ensuring compliance with EU REACH Annex XVII, China GB 31574-2015 and US TSCA Title VI.
Six Sigma DMAIC control maintains ≤0.8% batch-to-batch variance on SPC-monitored charts. 98.5% on-time delivery with dual-qualified packaging (ISTA 3A / GB/T 4857). Blockchain-enabled QR traceability from Cr ore (HS 261000) to final Cr₂O₃ palletization.
Understanding chrome oxide green — the world's most durable green pigment, stable from the freezer to the furnace.
| Property | Value | Property | Value |
|---|---|---|---|
| Chemical formula | Cr₂O₃ | Melting point | 2435 °C |
| CAS No. | 1308-38-9 | Boiling point | ≈ 4000 °C |
| EC No. | 215-160-9 | Refractive index | 2.551 |
| C.I. designation | Pigment Green 17 (77288) | Mohs hardness | 8.5 – 9 |
| Theoretical density | 5.21 g/cm³ | Molar mass | 151.99 g·mol⁻¹ |
| Std. molar enthalpy of formation | −1128 kJ·mol⁻¹ | Std. molar entropy | 81 J·mol⁻¹·K⁻¹ |
| Solubility | Amphoteric — practically insoluble in water |
Application-engineered grades across seven industry tracks — cost optimization, performance enhancement and challenge-specific resolution in every one.
Aluminothermic feed for metallic chromium; metallurgical-grade grits with controlled carbon and silicon.
Read article → 02Weathering-resistant colour for camouflage coatings, industrial paints and architectural finishes.
Read article → 03Chrome-magnesia bricks, castables and high-temperature equipment protection to 1700 °C+.
Read article → 04Precision polishing, honing and optical finishing with narrow-distribution micronized grades.
Read article → 05Heat-stable to 982 °C (HDPE) — colouring for plastics, cement, tiles and outdoor structures.
Read article → 06Glazes, enamels and glass colorants with unrivalled thermal and chemical stability.
Read article → 07Low-Cr(VI) grades, NIR-reflective pigments and nano powders for next-generation formulations.
Read article →Technical deep-dives from our application lab — how chrome oxide green performs, and how to spec it correctly.
In-depth engineering guides — 2,000+ word deep dives with data tables, measured values and procurement playbooks. Written for buyers and formulators who need the full picture.
Yellow-shade vs blue-shade physics, the 4-step colourist workflow, D50 vs gloss trade-offs, and the decision journal professionals keep.
Read the 2,000-word guide → QC PLAYBOOKThe 8-test inspection plan, ISO 15528 sampling, how to read a CoA like an auditor, and the joint testing protocol.
Read the QC checklist → NIR SCIENCEMeasured reflectance of GREEN 1030 / 1031 / 1001 (Solar 29.5 / 27.2 / 24.7 %), cool-roof energy arithmetic and certification map.
Read the NIR deep dive → FRICTION ENGINEERINGThe four jobs Cr2O3 performs in a brake pad, D50 window guide, Better Brakes regulation shift, and the buyer's checklist.
Read the 2,000-word deep dive →Request a detailed estimate — tell us your grade, particle size and volume, and we will reply within one business day.
Grade, particle size, volume — or your target shade and finish.
50 g of the two closest grades, judged in your own formulation.
Batch-certified production with SPC-controlled colour.
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