Brown iron oxide powder, also known as iron (III) oxide or ferric oxide, is a naturally occurring pigment with a deep brown hue. It is derived from iron ore and consists of particles ranging from nanoscale to micrometer dimensions. This powdered form of iron oxide is widely used as a colorant in various industries, including construction, paints and coatings, plastics, ceramics, and cosmetics. The brown color of iron oxide powder results from its chemical composition and crystal structure, which absorb and reflect specific wavelengths of light. It offers excellent tinting strength and opacity, making it valuable for imparting earthy tones and enhancing the durability of products it colors. Iron oxide powders are stable under different environmental conditions and are non-toxic, making them suitable for a wide range of applications where color consistency and performance are critical.