желтый провод

1. Name of Product and Standard:Names of Product: Yellow Lead, another name is litharge, Chemical identity is lead Monoxide. Molecular formula: PbO Molecular weight: 223.192. Characters and Uses: Yellow Lead is a kind of yellow or yellowish brown powder, its specific density is 9.53, melting point is 888 , boiling point is 1470 . Heated to 300-500 , changes into Red Lead; With the temperature going on, changes into Yellow Lead again. It doesn't dissolve in water and alcohol, but dissolves in glacial acetic acid easily; it is poisonous while dissolving in nitric acid. Yellow Lead is used to make white lead powder, with oil is made into soap, in paint industry is used as lead drier, in plastic industry is used as stabilizer (i e PbO H2O 2PbSiO3 and 3PbO PbSO4 H2O) with great quantity is also used as the raw material for making optical glass, pottery and procelain; is also used to made radiation protection rubber, chrome pigment, and is used to make accumulator with a small amount. Technical standard: GB3677-83ItemsIndexOther IndustriesGlass IndustryFirst gradeSecond gradeLead Oxide % ≥99.39999Lead Metal % ≤0.10.20.2Lead Dioxide % ≤0.050.10.1Insoluble Nitrate Substance % ≤0.10.20.2Moisture Content % ≤0.20.20.2Residue on Sieve % ≤0.20.50.5packing: 25kgs/50kgs with PP bag or drum