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MOSINTER GROUP LIMITED
MOSINTER GROUP LIMITED

China Zinc borate CAS 1332-07-6 Flame Retardant ZB ZINC BORATE EXTRA PURE zinc hydrogen borate manufacturer

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Zinc borate CAS 1332-07-6 Flame Retardant ZB ZINC BORATE EXTRA PURE zinc hydrogen borate 

Payment Terms: T/T,L/C,WU 
Place of Origin: Shandong, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: According to the request of...
Brand Name: MOSINTER
Molecular formula: B2O6Zn3
Solubility in water: insoluble
Melting point: 980℃
Production Capacity: 3000 Ton/Year
Delivery Date: within 7 days
CAS No.: 1332-07-6
Molecular weight: 313.79
Appearance: White powder

Zinc borate is primarily used as a flame retardant in plastics and cellulose fibers, paper, rubbers and textiles.

Flame Retardant ZB (CAS: 1332-07-6) Zinc borate

 

Item

Index

Appearance

White   powder

White   dgree

95

Boric   oxide, %

52-56

Zinc   oxide, %

42-44

Loss   on drying, %

≤1.5(400℃)

Free   water, %, ≤

0.5

Residue   on sieve, %, ≤

1.0

Zinc borate is an inorganic compound, a borate of zinc. It is a white crystalline or amorphous powder insoluble in water. Its toxicity is low. Its melting point is 980 °C.

Variants

Several variants of zinc borate exist, differing by the zinc/boron ratio and the water content:[1]

•     Zinc borate Firebrake ZB (2ZnO•3 B2O3•3.5H2O), CAS number 138265-88-0

•     Zinc borate Firebrake 500 (2ZnO•3 B2O3), CAS number 138265-88-0

•     Zinc borate Firebrake 415 (4ZnO•B2O3•H2O), CAS number 149749-62-2

•     ZB-467 (4ZnO•6B2O3•7H2O), CAS number 1332-07-6

•     ZB-223 (2ZnO•2B2O3•3H2O), CAS number 1332-07-6

The hydrated variants lose water between 290–415 °C.

Uses

Zinc borate is primarily used as a flame retardant in plastics and cellulose fibers, paper, rubbers and textiles. It is also used in paints, adhesives, and pigments. As a flame retardant, it can replace antimony(III) oxide as a synergist in both halogen-based and halogen-free systems. It is an anti-dripping and char-promoting agent, and suppresses the afterglow. In electrical insulator plastics it suppresses arcing and tracking.

In halogen-containing systems, zinc borate is used together with antimony trioxide and alumina trihydrate. It catalyzes formation of char and creates a protective layer of glass. Zinc catalyzes the release of halogens by forming zinc halides and zinc oxyhalides.

In halogen-free system, zinc borate can be used together with alumina trihydrate, magnesium hydroxide, red phosphorus, or ammonium polyphosphate. During burning the plastics, a porous borate ceramics is formed that protects the underlying layers. In presence of silica, borosilicate glass can be formed at plastic burning temperatures.

Zinc borate is used in polyvinyl chloride, polyolefins, polyamides, epoxy resins, polyesters, thermoplastic elastomers, rubbers, etc. It is also used in some intumescent systems.

Zinc borate has synergistic effect with zinc phosphate or barium borate as a corrosion inhibitor pigment.

Zinc borate acts as a broad-spectrum fungicide in plastics and wood products.

Zinc borate can be used as a flux in some ceramics. In electrical insulators it improves the ceramics properties.

Nanopowder zinc borate can be used for the applications above, and also for improving the frictional properties of lubricating oils.

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Company Info

MOSINTER GROUP LIMITED [China (Mainland)]

sgs ico Offline Showroom in USA

Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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