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 |
