Brief Description
Zirconium silicate is a silicate inorganic substance with the chemical formula ZrSiO4. It is an odorless white or light gray powder, insoluble in water, and has the characteristics of stable chemical properties and high melting point (2500℃).
Technical Data
1. Physical properties
| Specific Gravity | 4.69 |
| Melting Point | 2500°C |
| Refractive Index | 1.97 |
| Mohs Hardness | 7.5 |
| Thermal Expansion Coefficient | 4.2*10-6 |
| Apprearance | White or off white powder |
2. Chemical properties
| Item | RS65 | RS64.5 | RS63.5 |
| ZrO2+HfO2 | 65.0 min | 64.5 min | 63.5 min |
| Fe2O3 | 0. 06 max | 0. 08 max | 0. 12 max |
| Ti02 | 0.10 max | 0.12 max | 0.18 max |
3. Product standard
| Type | Average mesh | Application |
| RS-1.0 | D50≤1.0um | High-grade sanitary porcelain
High-grade daily-use porcelain High-grade crystal brick |
| RS-1.2 | D50≤1.2um | |
| RS-1.5 | D50≤1.5um | Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc. |
| RS-2.0 | D50≤2.0um |
Application
1）Refractory materials and products, glass kiln zirconium ramming material, castable, spray coating, etc.
2）TV industry color kinescope, glass industry emulsified glass, enamel glaze production.
3）Plastics industry: used as fillers requiring stability, heat resistance and chemical erosion resistance.