Tribasic Lead Sulfate - PVC additives - China Yeyuan Chemical Raw Material Supplier - PVC - PVC Additives - Chemical Addit...

Tribasic Lead Sulfate

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 135℃, it turns to yellow under sunlight, especially in wet condition.

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Product performance

Molecular formula: 3PbO ·PbSO4·H2O
Molecular weight: 990.86

Mainly used for the heat stabilizer of PVC opaque or semi opaque products.

Quality Specification

Index	Best quality
Appearance	White powder without evident mechanical impurity
Lead oxide (PbO)， %	89.0±1.0
Sulfur trioxide (SO3)，%	7.5-8.5
Heating loss ， % ≤	0.30
Fineness(0.075mesh）, %≥	99.95
Whiteness, % ≥	90.0

Package and storage

Plastic weaved bag, lined with PE bag, and 25Kg weight.

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.