Second, the formula: 2 Pbo.PbHpO31/2H2O

Third, the product performance: white fine crystal powder, density 6.1 insoluble in water and ordinary solvents, soluble in hydrochloric acid nitric acid. This product turned dark gray around 200 ℃, 450 ℃ or so into yellow.

Main technical index: in line with some of HG 2339-92

Item Index
Superior grade First grade Qualified
Lead content (PbO total)%

Pb Content (as Pbo)
89.0 ~ 91.0
89.0 ~ 91.0
88.5 ~ 91.5

Sulfur trioxide (SO)%
H3 PQ3Content
10.1 ~ 12.0
10.0 ~ 12.0
9.0 ~ 12.0

Heating loss ≤%
Heat Loss
0.30
0.40
0.60

Balance of material (75um) ≤%

Residue on 75um sieve
0.30
0.40
0.60

V. Application: This product can be PVC and vinyl chloride copolymer as heat stabilizer, in addition to receiving in vitro performance with acid, there is resistance to chlorination and the ability to shield ultraviolet excellent weather resistance, thermal stability and electrical insulation is also good, mainly for opaque hard products and soft goods, in particular, outdoor supplies.

Sixth, the storage method: Stored in a cool dry place, moisture and sun.

VII, packing: woven bag.