Molecular formula : 3PbO?PbSO4 旽2 O Specifications : Testing items Excellent Grade I Appearance White power White power Lead oxide (PbO), % 89.0?.0 89.0?.0 Sulfur trioxide(SO3)),% 7.5-8.5 7.5-8.5 Heating loss,% ≤ 0.3 0.4 Fineness(mesh of 0.075mm)%≥ 99.7 99.6 Application : The product is the most widely used thermal stabilizer for PVC plastics with strong ability of cohesion with hydrogen chloride, good long-term thermal stability, excellent electrical insulation. It has the ability of white pigment with strong covering power , tolerate weather-resistant property and mainly used in non-transparent soft and hard products and cable material. Coordination effects can be obtained when used with a little amount of lead dibasic phosphite or lead dibasic stearate. Package : Plastic bag, lined with PE bag, 25KG weight.