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Zinc borate

Molecular formula: 2ZnO·3B2O3·3.5H2O

Molecular weight: 434.62

Performance: Zinc borate is a white non-toxic fine powder, widely used in plastics, rubber, paint, ceramics, etc., especially as a flame retardant and smoke suppressant. Zinc borate as a flame retardant can be used alone or Mixed with antimony trioxide. 7 The water loss temperature of crystalline water zinc borate is about 160℃, and 3.5 crystalline water zinc borate can reach 260℃, so it can be applied to the occasions with relatively high processing temperature.


Zinc borate index:

项     目

指    标

锌含量(ZnO计)                      %

37.0-40.0

硼含量(以B2O3计)%

45.0-48.0

筛余物(100目 筛余)                   %≤

0.01

筛余物(325目筛余)                   %≤

0.1

水分                           % ≤

0.5

铅                             %≤

0.005

镉                             %≤

0.005


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