Red Lead (Pb3O4) is a higher oxidation stage product with brick red to orange red color and high specific gravity.

The product finds major application in the battery, Lead glass, primer paints and the rubber industry.

Typical chemical / physical properties are flows are follows:-

Pb2 O4% 75-94
PbO2 25-33
Acid absorption mg/gm 150 to 160
Apparent density 150-160
App. Density (Scott) 1.4-1.7
Specific Gravity 9.0
Fineness – ( + 240 mesh retention) 0.15%
Color Orange Red to Brick red
Water Absorption mg/gm 90 to 110