Dibasic Lead Phosphite
Molecular formula ： (2PbO ·ＰbHPO3·1／2Ｈ 2 Ｏ)
Molecular weight ： 742.57
Property: It is white, sweet and toxic powder with the specific gravity of 6.94. It can dissolve in hydrochloric acid, and nitric acid, but not in water. It will turns to gray & black at 200℃, it turns to yellow at 450℃, and it has good deductibility. It is antioxidant; it has the excellent performance of resistance to ultraviolet ray, cold, and ageing.
Application: Mainly used for the heat stabilizer of PVC opaque.
Package: Plastic weaved bag, lined with a PE bag, and 25Kg in weight.
Storage: It is toxic inorganic product, so it should be kept in a dry and cool storage house with good ventilation, and cannot be stored or transported with food.
. Specifications
Index Best quality
Appearance: White powder without
without evident mechanical impurity
Lead oxide (PbO), % 90.0±1.0
Phosphorous acid (H3PO3), % 11.0±1.0
Moisture, % ≦ 0.30
Fineness(mesh of 0.075mm),%≧ 99.70
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