رنگ اکسید آهن زرد

Iron Oxide Yellow is an inorganic pigment widely used in pharmaceuticals, cosmetics, and food products to provide a stable yellow color. It is chemically known as hydrated ferric oxide (Fe₂O₃·H₂O) and is valued for its non-toxic nature, lightfastness, and chemical stability.

🏭⚗️ Production
Iron Oxide Yellow is produced by controlled precipitation or thermal treatment of iron salts, such as ferrous sulfate, in the presence of oxidizing agents and water. The process may involve neutralization, aging, filtration, and drying to obtain a fine, uniform powder. Industrial production ensures consistent particle size, color strength, and minimal impurities for use in pharmaceutical and cosmetic applications.

🔬 Properties
Iron Oxide Yellow appears as a fine, yellow to yellow-brown powder. It is insoluble in water and organic solvents, chemically inert, and resistant to heat, light, and acids. The pigment exhibits excellent stability in formulations, does not migrate in solid dosage forms, and maintains color integrity under various storage and processing conditions.

🧪 Applications
In the pharmaceutical industry, Iron Oxide Yellow is widely used to color tablets, capsules, and coated formulations. It is employed in cosmetics for eye shadows, foundations, and other makeup products. In food and nutraceuticals, it serves as a coloring agent in products where natural, stable yellow pigmentation is required. Its inertness also makes it suitable for research applications as a reference pigment.

⚠️ Safety
Iron Oxide Yellow is generally regarded as safe for pharmaceutical, cosmetic, and food use. It is non-toxic, non-reactive, and does not cause irritation under normal handling. Proper storage involves keeping the pigment in a cool, dry place, away from strong acids or reducing agents. Personal protective equipment such as masks and gloves is recommended when handling fine powders to prevent inhalation or contamination.