Lead Red] Chemical Formula:Pb3O4 Molecular Weight:685.6 Character:Red,heavy powder,Poisn!Indissoluble in water and acohol. Specification:In conformity with the Chinese Standard.GB1705-86 Item Value Content of lead superoxide(PbO2)% ≥33.9 Content of lead tetroxide(Pb3O4)% ≥97 Erapoyate substance 105癈% ≤0.2 Remains on sieve(63祄) % ≤0.75 Unsoluble in nitric acid % ≤0.1 Content of iron sesquioxide(Fe2O3)% ≤0.005 Content of copper oxide(CuO) % ≤0.002 Application: Mainly used in industries such as antirust paint,optical glass,ceramics store battery etc. Packing: Packed in plastic film bag with plastic woven bag as it''s outer package,net weight 25 kgs each. Storage & Transportation:This product should be stored in dry warehouse.Strictly keep from moisture.Keep away from acid during storage and transportation. Explanation: Special specification can be manufactured and packed according to the customer''s demand.