Quick Details
| Classification: |
Chemical Auxiliary Agent |
CAS No.: |
12767-90-7 |
Other Names: |
Zinc borate |
| MF: |
2ZnO .3B2O3 . 3.5H2O |
EINECS No.: |
215-566-6 |
Purity: |
99% Min |
| Place of Origin: |
China (Mainland) |
Type: |
Zinc borate |
Usage: |
Plastic Auxiliary Agents, Rubber Auxiliary Agents, flame retardant |
| Brand Name: |
LONWIN |
Model Number: |
FR-ZB |
Appearance: |
white powder |
| Certificate: |
SGS.MSDS.ROSH6 |
Packaging & Delivery
| Packaging Details: |
25kgs woven bags with plastic bag inner palletized
according to the customer's requirements |
| Delivery Detail: |
within 14 days after the order confirmation |
Product Description
FLAME RETARDANT - ZINC BORATE 2335/ZB200
Product name: FLAME RETARDANT - ZINC BORATE 2335/ZB200
Molecular formula: 2ZnO .3B2O3 . 3.5H2O
Molecular weight: 125.2261
CAS No.: 12767-90-7/138265-88-0/1332-07-6
Physical property: Zinc Borate is one multi-functional synergistic flame retardant with Antimony Oxide etc additives in polymers to improve flame retardant performance, it can reduce smoke evolution and adjust the balance of flame retardant properties versus mechanical, electrical and other properties.
Zinc Borate is widely used in PVC applications such as carpet, conveyor belt, wire and cable, and in Nylon, PE, PP etc engineering plastics of halogen free flame retardant systems based on Al(OH)3 and Mg(OH)3, intumescent coating and painting, ceramic glaze, milk glass, decorative paper etc fields.
Zinc Borate is also used in wood composite as fungicide to prevent from decay fungi and subterranean termites .
ZB200 grade's particle size is the smallest, it is recommended to wire and cable applications that need much fine particle size fields.
Quality Standard:
ZB200 Grade Specification
| Index / Item |
Zinc borate 2335 ( 2ZnO .3B2O3 . 3.5H2O ) |
| Excellent grade |
First grade |
| Whiteness |
99 |
95 |
| Surface water % ≤ |
0.5 |
1.0 |
| P article size , um |
1-3 |
1-3 |
| 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 ºC |
980 |
| Temp. of dehydration ºC |
2 9 0 |
| Refractive index |
1.58 |
Storage and transportation: Handle with care, keep air-tight and dry.
Packing: 25kg/ bag or according client requirements.
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