Zirconium Silicate Powder

A non-toxic, odorless white or off-white powder.
High refractive index of 1.93-2.01 and stable chemical performance.
It is widely used in the production of various building ceramics, sanitary ceramics, daily ceramics and first-class handicraft ceramics.

Zirconium Silicate Powder Parameters

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

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

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. (zirconium silicate melting point is very high :2500℃)

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

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