Molecular formula: 2PbO·PbHPO3·1/2H2OMolecular weight: 742.59Properties and features: Slightly borwn or white powder, smell sweet.Density is 6.94g/cm3. Indissoluble in water but dissoluble in acid, changes into ashblack at 200℃ and changes into yellow at 450℃t. Will burn when meeting fire. Quality standard：HG2339-92
Item | Index | ||
Excellent | First Grade | Standard | |
Appearance | White powder | White powder | White or yellowish powder |
Pb Content（as Pbo） % | 89.0-91.0 | 89.0-91.0 | 88.5-91.5 |
H3PO3Content % | 10.0-12.0 | 10.0-12.0 | 9.0-12.0 |
Heat Loss % ＜ | 0.30 | 0.40 | 0.60 |
Residue on 75um sieve % ＜ | 0.30 | 0.40 | 0.80 |
