Loading Port:Tianjin Port
Payment Terms:TT or LC
Min Order Qty:20MT m.t.
Supply Capability:120000MT m.t./month
Introduction of High Purity Zinc Borate:
1. Zinc borate can be used as multi-functional synergistic additives with antimony oxide or other halogenated flame retardants to significantly improve the flame retardant performance, remove smoke emission and adjust the balance on chemical, mechanical, electrical etc properties.
2. As environmental protection substitute to replace current Antimony Oxide or halogen flame retardants, Zinc borate is directly used in PVC, PE, Polyolefin, Epoxy Polyamide etc resins and rubber process. Moreover, it is widely used in textile, fiber, floor, leather, wall paper, carpet, paint etc decorative materials to improve flame retardant performance.
3. Base on its chemical properties, Zinc borate is also used on anti-corrosion, infra red absorption, fungicide for wood preservation etc fields.
Specification of High Purity Zinc Borate:
Index / Item | Zinc borate 2335 ( 2ZnO.3B2O3 3.5H2O) | |
Excellent grade | First grade | |
W hiteness | 99 | 95 |
Surface water % ≤ | 0.5 | 1 |
P article size , um | 1月3日 | 1月3日 |
Pb, PPM < | 10 | 20 |
Cd, PPM < | 5 | 10 |
ZnO , % | 37.0-40.0 | |
B2O3, % | 4 6 .0-48.0 | |
H2O(hydrate), % | 13. 0 -15.5 | |
Fineness (Residue on 45um sieve ) , % ≤ | 0.1 | |
S pecific gravity, g/cm3 | 2.67 | |
Melting point °C | 980 | |
Temp. of dehydration °C | 2 9 0 | |
Refractive index | 1.58 | |
CAS No. | 12767-90-7/138265-88-0/1332-07-6 | |
