PVC Heat Stabilizer-Tribasic lead sulfate(TBLS)

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Tribasic Lead Sulphate
Molecular formula ¡º (3PbO ÿ£¡?b ¡Ó¡Ï 4 ÿ£¡?2 ¡Ï)
Molecular weight ¡º 990.86
Property: It is white, sweet and toxic powder with the specific gravity of 7.10. It can dissolve in nitric acid, hot thick hydrochloric acid, ammonium acetate and sodium acetate, partly in acetic acid, but not in water. It will turns to yellow when loses the crystal water at 135ÿ? it turns to yellow under sunlight, especially in wet condition.
Application: Mainly used for the heat stabilizer of PVC opaque or semi opaque products.
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
evident mechanical impurity
PbO 89.0ÿ?.0
SO3, % 7.5-8.5
Heating loss,% §Q 0.30
Fineness(mesh of 0.075mm),%§R 99.70