Description:
| Item/Grade | Zinc borate 2335( 2ZnO.3B2O33.5H2O) |
| Excellent grade | |
| Whiteness | 99 |
| Surface water % ≤ | 0.5 |
| Particle size, um | 3-5 |
| ZnO, % | 37.0-40.0 |
| B2O3 , % | 45.0－48.0 |
| Loss on ignition,% | 13.5－15.5 |
| Fineness (Residue on 45um sieve ), % ≤ | 0.1 |
| Specific gravity, g/cm3 | 2.67 |
| Melting pointoC; | 980 |
| Temp. of dehydration oC> | 320 |
| Refractive index | 1.58 |
Properties:
Zinc Borate is one environmental-friendly halogen-free flame retardant. There are some formulations of XZnO.YB2O3.ZH2O, in which Zinc Borate with 3.5 hydrate is called ZB－2335. It is widely used in plastic, rubber, coating fields etc.
Applications:
Used as multi-functional synergistic additives, environmental protection substitute and it is widely used on anti-corrosion, infra red absorption, fungicide for wood preservation fields etc.