Zinc Borate

CHARACTERISTICS: Zinc Borate is an environmental friendly inorganic flame retardant .It is white powder , slight ly soluble in water, crystal powder insoluble in HCl, amorphous powder soluble in HCl. This product performance in high flame retardancy without any toxic substance, low water...

Product Details

Chemical name:

Zinc Borate

CAS No. :

12767-90-7

Formula:

2ZnO 3B2O3 3.5H2O

Formula weight

434.62

 

CHARACTERISTICS:

Zinc Borate is an environmental friendly inorganic flame retardant.It is white powder , slightly soluble in water, crystal powder insoluble in HCl, amorphous powder soluble in HCl. This product performance in high flame retardancy without any toxic substance, low water solubility, high thermal stability, ultra-fine particle size, excellent dispersibility. Also it takes role as smoke suppressant and synergist with other flame retardant together.
 
SPECIFICATION

Item

Unit

Value

Appearance

--

White Powder

ZnO

37.0-40.0

B2O3

45.0-48.0

Loss at ignition

13.0-15.5

Whiteness

--

≥90

Moisture

≤0.5

Particle Size

D10 (um)

0.5-1.0

D50 (um)

3-5

D90 (um)

6-8

Sieve analysis

%

≤0.1

Melt point

980

Decomposition temp

≥290

Density

g/cm3

2.67

Refractive index


1.58

             
APPLICATION:
Used in PVC,PE,EVA,PP, Reinforced PA,PS,Epoxy, Nature Rubber as synergist with halogen flame retardants and ATO.Used as flame retardant in paper, fabric textile, decorating board, carpet etc.
The dosage varies from 2% to 15% as flame retardant or synergist.
 
PACKING & STORAGE:
25Kg/Bag. PP woven bag with PE film inner lining or paper-plastic bag.
Store in ventilated, dry place, avoid direct sunlight.

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With wide experience and expertise, Richem International is specialized in supplying quality and effective zinc borate. As one of the leading manufacturers and suppliers in China, we are equipped with a professional and productive factory. Please rest assured to buy.
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