Red Lead
Comprehensive Range
Red Lead
Lead(II, IV) oxide, also called red lead is the inorganic compound with the formula Pb₃O₄. A bright red or orange solid, it is used as pigment, in the manufacture of batteries, lead glass, and rustproof primer paints. It is an example of a mixed valence compound, being composed of both Pb(II) and Pb(IV).
What is Red Lead Ordinary?
Red Lead Ordinary appears in a vibrant orange to red brick colored pigment which had a chemical property to be able to get dissolved in acetic acid and completely insoluble in water and ethanol. Red lead ordinary has a relatively lower specific gravity, water and acid absorption rate (mg/gm) than red lead setting. It is mostly used in ballistic modifiers for propellants of high-energy, ceramic glazes, in rubber adhesives and also in foam coatings used in X-rays as a radiation shield.
What is Red Lead non-setting?
Red lead non-setting is a variant of red lead consisting of reactive litharge in very minute quantity. This variant is composed of high quantity of lead peroxide. Red Lead setting or RLNS is available freely in nature in a powdered form.
RLNS finds its uses primarily and widely In the manufacturing of storage batteries and as an oxidizing agent in glass manufacturing process. Red lead non-setting types are also importantly used in creating Waldies Sindur and anti-corrosive paint to cover steel structures.
| Composition / Properties | ||||||
|---|---|---|---|---|---|---|
| PbO2 | PB304 | Antimony | Bismuth | Copper | ||
| 30 ± 2% | 80-90% | > 0.0010% | > 0.020% | > 0.0030% | ||
| Iron | Manganese | Retention on 100 BSS | Retention on 300 BSS | Apparent Density | ||
| > 0.0020% | > 0.0005% | Nil | > 5% | 1.30 to 1.60 g/cc | ||