Zinc phosphate
- Molecular Formula Znz (PO4)2.4H20
- Usage: Material for anti-corrosion paint used in containers, ships and steel structures / Material for electric components
- With high quality satisfying ISO 6745, Hanchang’s zinc phosphate dominates Korean market and it is also exported.
Hanchang’s zinc phosphate exhibits consistent particle size distribution based on accumulated technology and stabilized production system,
● Characteristics and Capacity
White Powder
- Corrosion of a metal surface is due to its reaction with surrounding oxidants, such as air, water and carbon dioxide. Zinc phosphate helps the formation of passivation layer on the metal surface to be protected.
Production Capacity: 180 MT/month
● Product Profile
- Coatings grade: zinc phosphate with d(0.5) within 9 ~ 12 μm.
- Electronics grade: zinc phosphate with d(0.5) within 14 ~ 20 μm
- Other grades: upon customers’ request, zinc phosphates with other particle size can be produced .
● Specification
TEST ITEM | UNIT | Coatings Grade | Electronics Grade |
|---|---|---|---|
Appearance | - | White powder | White powder |
ZnO | wt.% | Min. 53.0 | 56±2 |
P2O5 | wt.% | Min. 31.0 | 32±1 |
Pb | wt.% | Max. 0.05 | Max. 0.01 |
Cd | wt.% | Max. 0.01 | Max. 0.01 |
Sieve residue (+325 mesh) | wt.% | Max. 0.1 | Max. 0.1 |
Free moisture | wt.% | Max. 2.0 | Max. 2.0 |
Specific gravity | - | 3.0 ~ 3.6 | 3.0 ~ 3.6 |
● Packing
Product | Unit Weight | Package |
|---|---|---|
Zinc phosphate | 20 kg | PP bag, Paper bag |
300 kg, 400 kg, 500 kg | PP bag |