1. Appearance

High-class and first-class product is a white powder, qualified product is white or slightly yellow powder.

2. Molecular structure

   Molecular formula: 3PbO·PbSO4·H2O

Relative Molecular Mass: 990.87 (according to the 1989 International relative Atom quality)

3. Properties

Tribasic lead sulphate also known as tribasic lead sulfate, referred to tribasic. White or slightly yellow powder, slightly sweet, toxic. Density is 7.1g/cm3, melting point 820℃,over about 200 degrees start to lose crystal water,refractive index of 2.1,insoluble in water and organic solvents, soluble in hot ammonium acetate, base class, nitric acid and hot concentrated hydrochloric acid.Non-flammable and corrosive, easily absorb moisture, in the wet state under a sunlit color decomposition. This product has a stabilizing effect on PVC,it has excellent heat resistance and electrical insulation, good light fastness, especially suitable for high-temperature processing.

4.Technical Index  

    HG 2340-2005 Standard

5. Usage

Used as thermal stabilizer for PVC.Applies to opaque PVC rigid pipe, plates, injection molding products, also used in leather products. Due to its excellent performance and is widely used in PVC electrical insulation materials ,it can also be used to paint colors, it has the advantage of stable and do not change color to light.

6. Packaging and storage

25kg/bag, normal temperature and dry storage.