[Red lead] 
 Chemical formula: Pb3O4 
 Molecular weight: 685.6 
 Characters: heavy red powder, insoluble in water and alcohol. 
 Specifications: Compliance HG/T3850-2006 
 Item Index 
 Lead dioxide (PbO2) content,% ≥ 33.9 
 The original high-acid lead (Pb3O4) content,% ≥ 97 
 105 ℃ Volatile% ≤ 0.2 
 Sieve Residue (63μm)% ≤ 0.75 
 Nitric acid insoluble matter% ≤ 0.1 
 Iron oxide (Fe2O3) content,% ≤ 0.005 
 Copper oxide (CuO) content,% ≤ 0.002 

 Uses: mainly used for anti-rust paint and optical glass, ceramics, glaze and other industries. 
 Packing: 25KG woven bag lined with film. 
 Storage and Transportation: This product should be stored indoors dry, non-humid, shall not be mixed with acidic materials storage or shipment. 
 Description: The special specification according to user requirements of production, packaging.