Iron Oxide Green: Bright and Stable Green Pigment
Comparison of the characteristics of Iron Oxide Blue and Iron Oxide Orange
Iron oxide pigments (Iron Oxide Pigments) are widely used in coatings, plastics, ceramics, building materials and other fields due to their excellent weather resistance, chemical stability and rich colors. Among them, Iron Oxide Green is favored for its unique color tone and environmental protection characteristics.
Characteristics of Iron Oxide Green
Iron oxide green is usually a mixture of iron oxide yellow (FeO(OH)) and iron oxide blue (Fe₃O₄), or synthesized through a special process. Its main features include:
Color: presents a dark green to olive green hue with a stable hue.
Light resistance: Excellent, not easy to fade due to ultraviolet radiation.
Chemical resistance: Acid and alkali resistant, suitable for outdoor and industrial environments.
Environmental protection: non-toxic, in compliance with environmental protection standards such as RoHS and REACH.
Applications: architectural coatings, plastic coloring, artistic pigments, concrete products, etc.
Characteristics of Iron Oxide Blue
Iron Oxide Blue (also known as Prussian Blue, chemical formula Fe₄[Fe(CN)₆]₃) is a dark blue pigment with the following characteristics:
Color: dark blue with a slight metallic luster.
Lightfastness: moderate, may fade slightly after long-term exposure to sunlight.
Heat resistance: poor, may decompose at high temperatures (>180°C).
Applications: inks, coatings, painting pigments, etc.
Characteristics of Iron Oxide Orange
Iron Oxide Orange (chemical formula Fe₂O₃·H₂O) is a warm-toned pigment with the following characteristics:
Color: bright orange-red, similar to rust.
Weather resistance: excellent, suitable for outdoor use.
Temperature resistance: can withstand high temperatures (>300°C).
Applications: bricks and tiles, floor paints, plastic coloring, etc.
Parameter comparison table
Property | Iron Oxide Green | Iron Oxide Blue | Iron Oxide Orange |
---|---|---|---|
Chemical Composition | FeO(OH) + Fe₃O₄ | Fe₄[Fe(CN)₆]₃ | Fe₂O₃·H₂O |
Lightfastness | Excellent | Moderate | Excellent |
Heat Resistance | Good (<200°C) | Poor (<180°C) | Excellent (>300°C) |
Eco-Friendliness | Non-toxic | Low toxicity (contains cyanide) | Non-toxic |
Primary Applications | Coatings, Plastics | Inks, Painting | Construction materials, Flooring |