Molecular formula：Al(OH)3
Molecular weight：78
Physical and chemical properties：
A white gelatinous substance, almost insoluble in water. Melting point: 300℃(loss of water). Antacid action is slow, durable, strong, has astringent effect, has mucosal protection, causes constipation, does not produce CO2(carbon dioxide), no acid rebound, no alkalemia. Aluminum hydroxide mainly has 325 mesh, 800 mesh, 1250 mesh, 5000 mesh four specifications. White powdery solid. It is almost insoluble in water and reacts with alum to form a suspended substance in condensed water and adsorb pigments.
Production usage：
Aluminum hydroxide is the largest and most widely used inorganic flame retardant additive. Aluminum hydroxide as a flame retardant is not only flame retardant, but also can prevent smoke, do not produce drops, do not produce toxic gases, therefore, obtain a wide range of applications, the use is also increasing year by year. Application: thermosetting plastics, thermoplastics, synthetic rubber, coatings and building materials. At the same time, aluminum hydroxide is also the basic raw material of aluminum fluoride necessary for electrolytic aluminum industry, and aluminum hydroxide is also widely used in this industry.
Quantity standard
| |
化学成分Chemical component Al(OH)3 |
灼减(灼热减量) Burning loss |
SiO2 |
Fe2O3 |
Na2O |
| |
≥ |
≤ |
| AH-1 |
64.5 |
35 |
35 |
0.02 |
0.4 |
| AH-2 |
64 |
35 |
35 |
0.03 |
0.5 |
| AH-3 |
63.5 |
35 |
35 |
0.05 |
0.6 |
