Aluminum Hydroxide (also called: hydrous aluminum oxide, ATH in short)
Molecular formula: Al(OH)3 Or Al2O3·3H2O
Molecular weight: 78
1)Technical Index
Brand |
Chemical composition, % |
Al2O3
not less than |
Firing loss not less than |
Impurity not larger than |
SiO2 |
Fe2O3 |
Na2O |
AH-1 |
64.5 |
35 |
0.02 |
0.02 |
0.4 |
AH-2 |
64.0 |
35 |
0.04 |
0.03 |
0.5 |
AH-3 |
63.5 |
35 |
0.08 |
0.05 |
0.6 |
Note :
1. Al2O3 content is of the difference of 100% minus firing loss and impurity content.
2. The chemical composition is calculated of the baking at 110±5 ℃ for 2 hour .
3.The impurity content is treated in line with the number rule of GB8170.
Physical feature: there are mainly 4 sizes of aluminum hydroxide, 325, 800, 2,000 and 3,000 mesh.
2)Application
Aluminum hydroxide is the most consumable and applicable inorganic additive flame retardant that does not only resist firing, but also prevents from smoke, dropping or toxic gas. So, it is widely used with gradual increase of the usage, at the sectors of hot solidifying and moulding plastic, synthetic rubber, coating and construction materials.
3).Package, transportation and storage
Package: internal plastic with knitted exterior covered with film, with the net weight of 25kg or 1000 kg
Transportation: the product is of dangerous one, which should be protected from damp, rainfall and package damage in transportation.
Storage: at dry warehouse with good ventilation. |
