Molecular formula: 3PbO.PbSO₄.H₂O
Molecular weight: 990.86
Standard:HG2340-92 (or at customers' specification)
Main application: used for PVC heat stabilizer in plastic industry.
Characters: white powder, smell sweet, slightly dissoluble in water and dissoluble in nitric acid, hot chloric acid, ammonium acetate and sodium acetate solutions, Lost crystallization, melting point is 800^oC at 135 deg.

Item	high grade	1 st grade	acceptable quality grade
Lead Content,%	88.0-90.0	88.0-90.0	87.5-90.5
Sulfur Trioxide,%	7.5-8.5	7.5-8.5	7.0-9.0
Moisture,%	0.30max	0.40max	0.60max
Residue through 75um screen%	0.30max	0.40max	0.80max

Products for special purpose at customers' specification/requirement are available.
Package: in 500kg/1000kg plastic woven bags, 20/25kg paper bags or at customers' request