Alumina and Aluminium Hydroxide Overview
Alumina is a white powder extracted and refined from natural bauxite. It is used as the basic material of fine ceramics in a wide range of applications such as insulators, IC substrates, abrasives, artificial teeth etc.
Aluminium Hydroxide (ATH) is used in wall finishes that take advantage of its fire-retardant properties, ceramic washbasins and artificial marble kitchen counter top that make use of its white color, and also semiconductors and insulation materials that make use of its electrical insulating properties (coatings for electric wires, etc.)
Alumina Al2O3
Alumina, Al2O3, is a white powder extracted and refined from natural bauxite.
It has a high melting point, good chemical stability, high thermal conductivity, and electrical insulation.
Therefore, it is used as the most basic material in fine ceramics in a wide range of applications, such as insulators, IC substrates, abrasives, artificial teeth, etc.
| Grade | Particle size (μm) |
Applications | Feature |
|---|---|---|---|
| Normal | 60 | Porcelain, Refractory | General grade |
| Fine | 4.7 | Insulator | High compressed bulk density and high thermal reactivity |
| Super Fine | 1.0 | Refractory | Excellent sintering activity |
| Low Soda | 60 | Insulator | Raw material for resistance insultaors and heat-resistant porcelain |
| Thermally Reactive | 0.52 | IC Board | Abrasion-resistant, high-strength ceramic raw material |
The data shown below are representative figures. They are not guaranteed values.
Aluminium Hydroxide Al(OH)3
Aluminum hydroxide, Al(OH)3, is an inorganic compound formed during the manufacturing process of aluminum.
Its appearance is a white powder and it is extracted from bauxite ore.
Although we rarely see them in our daily lives, they are used in a variety of things around us that are related to our lives;
- Wall finishes and wallpaper that take advantage of its fire-retardant properties.
- Ceramic washbasins and artificial marble kitchen counters that make use of its white color.
- Semiconductors and insulation materials that make use of its electrical insulating properties (coatings for electric wires, etc.)
- Aluminum hydroxide is also used as a flocculant that removes turbidity from tap water.
| Grade | Particle size (μm) |
Applications | Feature |
|---|---|---|---|
| Normal | 55 | Water treatment | Containing moisture |
| Fine | 18 | Flame retardant filler | Improve arc resistance and tracking resistance of plastic |
| Super Fine | 1.0 | Flame retardant filler | Fine particle size |
The data shown below are representative figures. They are not guaranteed values.