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1.Basic Index
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Molecular formula
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2ZnO·3B2O3·3.5H2O
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Molecular weight
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435.4
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Appearance
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white powder
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Melting point
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980°C
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2.Technical Index
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Name
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Product Index
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Boric oxide B2O3
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45-48
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Zinc oxideZnO
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37-40
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Ignition loss
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13.5-15.5
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Free water
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≤1
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Relative density
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2.69
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Whiteness
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95-99
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Refractive index
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1.58-1.59
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Medium grain size
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2-5μm
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General type:better flam retarding effect and can replace antimonous oxide
Environmental-friendly type:low plumbum and cadmium, and passed SGS testing autentication and fits ROHS standard in EU.
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3.Application Field
Flame Retardant ZB is inorganic addition flame retardant. Its characteristics are that it has good hot stability, and not only stops buring and vanishes smokings but also be used with other inorganic flame retardant. It is used in epoxy resin, unsaturated polyester, polyurethane, etc. And it is widely used in rubber, plastic, cable, wood,etc.
4.Packing and store
packing: brown paper double deck tectorial bag, and net weight per bag is 25kg.
store: storing in dry, ventilated and moistureproof conditions
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