Product : Dibasic Lead Phosphite Molecular formula : 2PbO PbHPO3 1/2H2O Property : White micro-crystal powder, poisonous, insoluble in water and ordinary solvents ,soluble in hydrogen chloride and nitric acid. It becomes gray-black at about 200℃, and yellow at 450℃. Technical index : Testing items Excellent Grade I Appearance White power White power Lead oxide (PbO)% 90.0?.0 90.0?.0 Phosphorus acid (HPO3), % 11.0?.0 11.0?.0 Moisture,%≤ 0.3 0.4 Fineness(mesh of 0.075mm),% ≥ 99.7 99.6 Application : It is a thermal stabilizer for PVC plastics, with shield function for ultraviolet light, with effect of anti-oxidizing agent and excellent weather resistance and sustaining reduction ability; with specific stable function for wax chloride; with nice primary-coloring resistance; proper service can avoid color shading. It has whitening effect for white plastics. It is also used as activator for foaming agent. It is mainly used for non-transparent soft and hard products, cable granules, etc. Package : Plastic bag, lined with PE bag, 25KG weight. Storage and Transportation : Store in cool, ventilated and dry places. Protecting from insolation and moisture while transported.