Red Lead
MOLECULAR FOMULAR: Pb3O4
Chem. Name: plumbous orthoplumbate
Characteristics: orange red powder, toxic,
bright colored, loose powder, good anti-corrosion property.
Applications: anticorrosion
pigment in coating industry; enhance the optical properties
and radiation shielding of glass; as fusing agent in ceramic
and porcelain enamel industry, reduce the M.P., surface tension
and viscosity of ceramic glaze and enhance the luster of the
products; also in battery and semiconductor parts.
National standard: HG/T3002-1977
Tech. Spec.:
| Item |
for coating industry |
for other industry |
| non-aggregating |
highly dispersive |
grade A |
grade B |
| lead dioxide, % < |
33.9 |
33.9 |
33.9 |
33.2 |
| led orthoplumbate, % > |
97 |
97 |
97 |
95 |
| led orthoplumbate + free led oxide,% > |
99 |
- |
| volatile substance, 105 ,% < |
0.2 |
0.2 |
| water insoluble, % < |
0.1 |
- |
| residue, screening (63¦Ìm),% < |
0.75 |
0.30 |
0.75 |
| absorption,g 100g < |
6 |
- |
| sedimentation volume,ml > |
- |
30 |
- |
| aggregation |
can stir into uniformity and be ease to
brush after 14 days of exposure in air |
- |
| insoluble in nitric acid,% < |
0.1 |
0.1 |
| ferric oxide,% < |
- |
0.005 |
| lead oxide,% < |
- |
0.002 |
|
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