Zinc Borate, Top Grade

CAS	138265-88-0
Structure
Molecular Formula	2ZnO·3B2O3·3.5H2O
Melting Point	980 °C
Application	Can be applied to a wide range of plastics and rubber processing, such as PVC, PP, PE, Nylon, PVC Resin, polyphenylene ethylene, epoxy resin, polyester resin, acid ethylene and natural rubber, styrene butadiene rubber, and chloroprene rubber. Can be applied to the production of paper, fiber fabric, decorative panels, floor leather, wallpaper, carpet, ceramic glaze, fungicides, and paint production to improve flame retardant performance. In halogen-containing systems, can be used together with antimony trioxide and alumina trihydrate. In halogen-free systems, can be used together with alumina trihydrate, magnesium hydroxide, red phosphorus, and ammonium polyphosphate. Also used for conveyor belts, wires and cables, intumescent coatings and paints, and anti-corrosive pigments.
Content	Pb, < 10 ppm Cd, < 5 ppm ZnO, 37.0 to 40.0% B2O3, 46.0 to 48.0% H2O (hydrate), 13.0 to 15.5%
Decomposition Temperature	290 °C
Feature	Multi-functional synergistic flame retardant with antimony oxide. Can replace antimony trioxide as a synergist in both halogen-based and halogen-free systems. Anti-dripping and char-promoting agent, and suppresses afterglow. Suppresses arcing and tracking in electrical insulator plastics.
Moisture Content	Surface Water max. 0.5%
Notes	We can also offer particle size 2 µm, 8 µm, and 12 µm. But our 3 to 5 µm standard size can meet most application requirements for zinc borate.
Particle Size	3 to 5 μm
RefractiveIndex	1.58
Specific Gravity	2.67 g/cm³
Whiteness	min. 99

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