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Zinc Borate

Name: Zinc Borate or ZB-2335

Molecular formula: Sb2(OCH2CH2O)3

Molecular weight: 434.68

CAS: the 1332-07-6 

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Introduction

Application

ZB-2335 not only has low smokiness and good fire resistance, but also can greatly reduce the ash of rubber products (air-duct, belt conveyer) after burning. So it is the ideal substitute of antimony trioxide. It can achieve better fire retarding effect when used together with antimony trioxide.

Usage

1. Plastics: PVC, PVC ebonite foam, phenolic aldehyde, polyester, reinforced polyamide, polyurethane, polystyrene, PP, PE, ABS, epoxy resin, polyvinyl acetate etc.

2. Rubbers: natural rubbers, Styrene Butadiene Rubber, chloroprene rubber etc.

3. Paints: non-intumescent paints and intumescent paints.

Specification

Index

Indicator

Appearance

White powder

ZnO,%

37.5±1.5

B2O3,%

48±1.5

Loss on ignition(450°C), %

14.5±1.0

Free Water(105°C Loss), % ≤

1.0

Mean grain size,um

3-6

6-10

10-15

Particle size (325 mesh sieve residue), % ≤

1.0

Pb

nil

As

nil

Fe

7ppm max

Packaging, transport & storage

Packing: woven bag lined with PE bags with net weight 25Kg or 40Kg.

This product is not dangerous goods. During transport process, prevent from moisture, rain and packing damaged.

It should be stored in dry, ventilated and moisture proof warehouse.
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