Iron oxide
Iron oxide black
Product Overview
Kuncai’s proprietary processes, including raw-material purification, yield iron oxide black with high tinting strength, a pronounced blue phase, excellent dispersibility, low metallic impurity levels, and uniform particle size. By carefully controlling various reaction parameters, it is possible to produce specialty products with tailored morphologies and distinct opacity characteristics, thereby meeting customers’ performance requirements.
Product Features
The FeOEX‑B series products are manufactured using a hydrochloric acid extraction process—pioneered by Kunchai—which yields reaction-grade raw materials with low heavy metal and impurity levels. The iron oxide black produced via a liquid caustic neutralization–air‑direct oxidation process boasts high color strength and excellent opacity, enabling reduced pigment usage in coatings and cosmetics while promoting resource efficiency and environmental sustainability.
Key Features
Kuncai’s specially formulated liquid‑alkali neutralization process produces iron oxide black with automated control of reaction conditions, ensuring a stable crystal‑nucleation process and uniform particle size, resulting in a high‑color‑strength iron black with strong tinting power.
- High hiding power: Iron oxide black is produced by neutralizing with liquid caustic soda followed by direct air oxidation. The product exhibits uniform particle size and excellent wetting performance in the paint film, thereby enhancing its hiding power.
- Low oil absorption: Iron oxide black is produced by neutralizing with liquid caustic soda followed by air oxidation, resulting in the formation of octahedral, densely packed iron oxide black particles. Its low oil absorption facilitates dispersion and wetting, making it easy to use.
- Low impurities: Kuncai pioneered an extraction-based method for preparing reaction raw materials, resulting in low heavy-metal content. The reaction is conducted in a sealed environment, ensuring no additional impurities are introduced, and the product meets cosmetic-grade standards.