3.5 H2O zinc borate

3.5 H2O zinc borate 2335, Zinc Borate 237 Anhydrous Zinc Borate Granular Size: 3um-7 um used in PVC, PE, Polyolefin, Epoxy

3.5 H2O Zinc Borate

Specification:   

Item/Grade	Zinc borate 2335( 2ZnO.B2O3 3.5H2O)
	Excellent grade	First grade
Whiteness	99	95
Surface water%≤	0.5	1.0
Particle size, um	3-7	3-7
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 dehydrationoC>	320
Refractive index	1.58

 

Applications:

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.

 

Storage: Be stored in a clean and dry storehouse, don't to let it be rained on, no mix storage and transportation with acids is allowed.

3.5 H2O zinc borate