Brown Oxide Pigment Iron Oxide Brown, also known as Ferric Brown or Brown Oxide Pigment, is a synthetic inorganic pigment with a brown color. Like other iron oxide pigments, it is composed of iron and oxygen, specifically iron(III) oxide, which gives it its brown hue. This pigment is commonly used in various industries for coloring and various applications. Physical properties Strong covering power and coloring power, very stable to light and atmosphere, insoluble in alkali, slightly soluble in acid, completely soluble in concentrated acid, poor heat resistance, easy to oxidize to iron-red above 100â??, the product color ranges from light coffee to dark coffee, the product color is soft. Some common uses of Iron Oxide Brown include Paints and coatings: It is added to paint formulations to achieve a brown color. This can be seen in a range of applications, such as house paints, industrial coatings, and artistic paints. Construction materials: Iron Oxide Brown is used to color concrete, mortar, and other construction materials, giving them a brown tint. This is especially useful in architectural and decorative concrete applications. Plastics: In the plastics industry, Iron Oxide Brown can be employed to provide a brown color in products like PVC, plastic packaging, and various plastic items. Ceramics and pottery: It is used in the coloring of ceramics, pottery, and glazes, helping achieve earthy and brown tones in ceramic products. Inks and pigments: It is utilized as a coloring agent in the production of inks and pigments for various applications, including printing inks, artists' paints, and coloring agents for a wide range of materials.