Yellow oxide is one kind of oxides with stable chemical properties. Iron oxide yellow is widely used in painting, scagliola and concrete due to its bright and pure color, good weather proof and high opacity, also can be used as colorant for ink, rubber, paper and so on.
Density (g/cm3): 0.2 to 0.7
Physical State: Solid, fine amorphous powder
Solubility in Water: Slightly
Boiling Point (°C): Not applicable
Flash Point: Not flammable
Specific Gravity: 4.1 to 4.3
pH Value: Neutral
Yellow iron oxide (CAS 51274-00-1) is used as a pigment, e.g. Pigment Yellow 42 or C.I. 77492. Pigment Yellow 42 is Food and Drug Administration (FDA) approved for use in cosmetics and is used in some tattoo inks. Solid material color ranges from yellow through dark-brown to black. Iron oxide-hydroxide is also used in aquarium water treatment as a phosphate binder.Recently, two forms of Iron oxide-hydroxides nanoparticles were identified as very good adsorbents for lead removal from aquatic media.