... : Pb3O4Molecular weight: 685.572. Characters and Uses:Red Lead is a kind of fresh organge red powder, its specific density is ... : PbOMolecular weight: 223.192. Characters and Uses:Yellow Lead is a kind of yellow or yellowish brown powder, its specific density ... rubber, chrome pigment, and is used to make accumulator with a small amount. Lead Oxide Red/Yellow, Lead tetroxide, litharge,Orange ...