What we do

We have 12 different hues and specifications of chrome oxide green to meet the needs of most customers.

Moving forward

We are not only manufacturers of chrome oxide green pigments but also providers of application solutions for chrome oxide green pigments.

CI Pigment Green 17(P.G.17)

Chrome Oxide Green (Cr₂O₃), as an inorganic green pigment, has emerged as a core coloring agent in coatings, surface layers, powder coatings, ceramics, glass, and plastics since its industrial production in the 19th century, owing to its unique chemical stability, weather resistance, and environmental compatibility. Compared to traditional organic green pigments (e.g., phthalocyanine green) or other inorganic pigments (e.g., cobalt green, chromium green complex salts), chromium oxide green demonstrates significant advantages in high-temperature tolerance, chemical corrosion resistance, and ecological compliance. Particularly under the global trend of increasingly stringent environmental regulations, its market demand continues to grow.

coating

涂料

plastic

Ceramics

Makeup

Concrete

Full Spectrum Coverage: Tailored Solutions for Every Shade

 

Our chromium oxide green products span the entire spectrum from light green to deep green, offering a diverse palette that includes vibrant mint greens, sophisticated olive tones, and rich emerald hues. Through advanced synthesis techniques and formulation optimization, we achieve precise color control, eliminating the need for clients to source from multiple suppliers. Whether for coatings, plastics, ceramics, or inks, our comprehensive product matrix ensures seamless alignment with unique application requirements.

As adherents to international quality standards, we employ cutting-edge testing technologies and end-to-end process monitoring to guarantee color difference (DE value) ≤1 across all batches—a standard rivaling top-tier industry players. This achievement stems from our uncompromising focus on raw material purity, reaction parameter optimization, and post-treatment refinement. 

Quality Benchmark: Stringent Process Control

Empowering Services with Technology, Building Trust through Strength

We deeply understand that our clients’ success is the driving force behind our progress. From R&D customization to mass production, and from color matching to technical support, our professional team consistently delivers comprehensive services with efficient responsiveness and meticulous attention to detail. Whether it’s a small-scale trial production or a large-scale order, we ensure dual guarantees in delivery timelines and product performance, empowering clients to stand out in the competitive market.​

Our color palettes and product specifications.

Lab Color Chart
GREEN 1000
GREEN 1001
GREEN 1002
GREEN 1003
GREEN 1030
GREEN 1025
GREEN 1061
GREEN 1062
GREEN 1071
GREEN 1072
GREEN 1073
GREEN 1050
GREEN 1051

  • The primary colors are obtained by mixing acrylic resin in a 1:1 ratio.
  • Click the SDS and TDS buttons to download the safety data sheet and technical data sheet for the corresponding model.

Lab Color Chart
GREEN 1000
GREEN 1001
GREEN 1002
Lab Color Chart
GREEN 1000
GREEN 1001
GREEN 1002
GREEN 1003
GREEN 1030
GREEN 1025
GREEN 1061
GREEN 1062
GREEN 1071
GREEN 1072
GREEN 1073
GREEN 1050
GREEN 1051
Lab Color Chart
GREEN 1000
GREEN 1001
GREEN 1002
GREEN 1003
GREEN 1030
GREEN 1025
GREEN 1061
GREEN 1062
GREEN 1071
GREEN 1072
GREEN 1073
GREEN 1050
GREEN 1051
Lab Color Chart
GREEN 1000
GREEN 1001
GREEN 1002
GREEN 1003
GREEN 1030
GREEN 1025
GREEN 1061
GREEN 1062
GREEN 1071
GREEN 1072
GREEN 1073
GREEN 1050
GREEN 1051

Product Durability Information


Test Item Value Test Standard
Migration Resistance (Scale: 1 - 5) 5 Tested according to DIN 14469 - 4
Thermal Stability (°C/°F) 982°C (HDPE) Tested according to DIN EN 12877 - 2
Weather Resistance (Scale: 1 - 5) - Full Shade 5 Tested according to DIN EN ISO 16474 - 2/DIN EN ISO 20105 - A02
Weather Resistance (Scale: 1 - 5) - Reduced Shade 5 Tested according to DIN EN ISO 16474 - 2/DIN EN ISO 20105 - A02
Light Fastness (Scale: 1 - 8) - Full Shade 8 Tested according to DIN EN ISO 4892 - 2/DIN EN ISO 105 - B02
Light Fastness (Scale: 1 - 8) - Reduced Shade 8 Tested according to DIN EN ISO 4892 - 2/DIN EN ISO 105 - B02

  • Full shade: 1:1 alkyd resin/melamine; Reduced shade: 1:10 TiO₂
  • Weather Resistance Ratings: 1 = Poor, 2 = Fair, 3 = Good, 4 = Very Good, 5 = Excellent
  • Light Fastness Ratings: 1 – 2 = Poor, 3 – 4 = Fair, 5 = Good, 6 – 7 = Very Good, 8 = Excellent

Comparative Study on Lightfastness Performance of Chrome Oxide Green, Iron Green, Cobalt Green, and Phthalocyanine Green

We selected market-commonly-used Phthalocyanine Green L 8690, Iron Oxide Green 5605, and Chromium Oxide Green GREEN1000 (produced by VERDECHROME) for comparative natural sunlight exposure and xenon-arc lamp accelerated aging tests. The experiments were designed in compliance with ASTM G155 and ISO 2810 standards.

Key conclusions from the experiments:

  1. Natural Sunlight Exposure (24 months):
    Chrome Oxide Green GREEN1000 exhibited the highest color stability (ΔE < 1.5, ISO 105-B02 Grade 8), with no visible surface chalking or gloss loss.
    Iron Oxide Green 5605 showed moderate fading (ΔE ≈ 3.2, Grade 6), primarily due to UV-induced oxidation.
    Phthalocyanine Green L 8690 demonstrated superior organic pigment stability (ΔE ≈ 2.8, Grade 7), though slight hue shift occurred under prolonged humidity.
  2. Xenon-Arc Accelerated Aging (1000 hours):
    GREEN 1000 maintained Grade 8 performance (ΔE ≈ 1.3), validating its inorganic structural inertness.
    L 8690 outperformed 5605 (ΔE 2.1 vs. 4.5), highlighting the advantage of phthalocyanine’s conjugated molecular framework in resisting photodegradation.
  3. Cross-Correlation Analysis:
    Xenon-arc results aligned with natural exposure trends (R² > 0.92 for ΔE correlation), confirming ASTM G155’s reliability in simulating real-world weathering.

These findings underscore GREEN1000’s exceptional durability for outdoor applications and provide empirical support for material selection in coatings, plastics, and architectural industries.

For more detailed information on durability testing, please refer to the study titled “COMPARATIVE DURABILITY STUDY OF VERDECHROME CHROME OXIDE GREEN AMONG GREEN PIGMENTS”

Chemical Nature and Crystal Structure

Chrome Oxide Green (chemical formula Cr₂O₃) is an inorganic pigment composed of trivalent chrome ions (Cr³⁺) and oxygen ions (O²⁻) bonded through strong covalent interactions, forming a corundum-type crystal structure (α-Cr₂O₃). Its hexagonal close-packed lattice grants exceptional chemical stability, with a Mohs hardness of 8.5–9.0 and a decomposition temperature exceeding 2300°C. This unique crystal structure is not only the foundation of its physical properties but also the scientific core of its color manifestation.

Scientific Principles of Color Formation

The iconic olive-green hue of Chromium Oxide Green originates from the d-d electron transitions of Cr³⁺ ions, a classic manifestation of crystal field theory in inorganic chemistry. The detailed mechanism is as follows:

  1. Crystal Field Splitting: In the hexagonal lattice, Cr³⁺ ions occupy octahedral coordination sites surrounded by oxygen ions. The five degenerate d-orbitals split into lower-energy t₂g orbitals (3 orbitals) and higher-energy eg orbitals (2 orbitals), with a splitting energy (Δ) of approximately 2.1 eV (corresponding to a wavelength of ~590 nm).

  2. Electron Transition and Light Absorption: When exposed to visible light (400–700 nm), Cr³⁺ electrons absorb photons of specific energy, transitioning from t₂g to eg orbitals. This process primarily absorbs blue-violet light (400–500 nm) and red light (600–700 nm), while reflecting green light (500–600 nm), resulting in the perceived deep green color.

  3. Spectral Validation: UV-Vis spectroscopy reveals a significant absorption trough at 540–580 nm for Cr₂O₃, with a reflection peak near 550 nm, aligning perfectly with its CIE Lab* coordinates (L=35.2, a=-18.5, b=12.7) and confirming its color stability.(We selected GREEN 1003 as the experimental subject.)

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