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fire retardant -Zinc Borate
Introduction:
Zinc Barate(Zinc Borate), is FB fire retardant . According its ingredients, there are a dozens of types, Zinc Borate with 3.5 hydrate , is ZB－2335 fire retardant or Firebrake ZB.FB(2ZnO 3B2O33.5H2O,) Molecular weight 434.68. It is l non-toxic matter, slight soluble in water, good Stability in heat, small szine, low Sg and good dispersion. It is one kind of high efficient fire retardant for plastic, rubber and coating.
Product standard： Q/ZWW003-2003
| Item Value |
Value |
| Appearance |
white powder |
| B2O3 % |
45.0－48.0 |
| ZnO % |
37.0-40.0 |
| Loss on ignition % |
13.5－15.5 |
| Surface water % ≤ |
1.0 |
| Fineness(325 Residue on screen )% ≤ |
1.0 |
Characteristics
| Ingredients |
2ZnO3B2O33.5H2O |
| Appearance |
white crystalline powder |
| ZnO % |
37.0-40.0 |
| B2O3 % |
45.0－48.0 |
| Surface water % ≤ |
1.0 |
| Temp. of dehydration ℃ |
>320 |
| Sg g/cm3 |
2.67 |
| Average Grainsize um |
1.5-5 |
| Toxicity |
(LD50)>10g/kg |
| Refractive index |
1.58 |
| Melting point ℃ |
980 |
Uses:
1.Rubber：natural rubber， styrene butadiene rubber, CR
2, Plastic：Alkyd, PVC, polyester, polyamide, polychlor, polystyrene, PP, PE,epoxy resin, etc.
3, Fire-proof coating and fire-retarding coating
4, paper, fiber fabrics, decorative floor, floor leather, wall paper, carpet, enamel and bactericide
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