Zinc Borate Anhydrous CAS: 12767-90-7

Zinc Borate for flame retardant in plastics
1)Physical and Chemical Properties:
Molecular Formula: 2ZnO 3B2O3 3.5H2O
Molecular Weight 434.68
H. S Code: 2840200000
CAS No.: 1332-07-6
EINECS No.: 215-566-6
Appearance: White powder
Relative Density: 2.67
Melting Point: 980
Toxicity: <LD50> 1g/Kg
Index of Refraction: 1.581. 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.
Productname
F lameretardantZincborate
Chemicalproperty
CASNo:1332-07-6MolecularFormula:ZnB4O7
Properties
Whitecolorpowder
Specifications
ZnO%:37.74B2O3%:47.65SurfaceWater%:0.14Waterofcrystallization%:13.70Leadcontent(ppm)%:6.80Cadmium(ppm)%:1.43Specificgravity:2.67MeltingpointoC:980Temp.ofdehydrationoC:320RefractiveIndex:1.58Whiteness:97ParticleSizeD50(um):1.88
Usage
1.Inorganicadditionflameretardan
2.Goodhotstability
3.Usedinrubber,plastic,cable,wood