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Description


Description of Zirconium Silicate:


Zirconium silicate is a non-toxic, odorless white or off-white powder. The raw material is natural high-purity zircon sand concentrate, which is then processed through superfine grinding, iron removal, titanium processing, and surface modification treatment. 

Zirconium silicate has a high refractive index of 1.93-2.01 and stable chemical performance. It is a high quality and low price opacifier for opacification. It is widely used in the production of various building ceramics, sanitary ceramics, daily ceramics and first-class handicraft ceramics. Zirconium silicate has been widely used in ceramic production because of its good chemical stability, so it is not affected by the burning atmosphere of ceramic, and can improve the binding performance of ceramic glaze significantly and improve the hardness of ceramic glaze. Zirconium silicate has been further applied in the production of color picture tube, emulsified glass and enamel glaze in the glass industry.


Technique Data

1. Physical properties of Zirconium Silicate

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 of Zirconium Silicate

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 of Zirconium Silicate

Type

Average mesh

Application

RS-1.0

D501.0um

High-grade sanitary porcelain

High-grade daily-use porcelain

High-grade crystal brick

RS-1.2

D501.2um

RS-1.5

D501.5um

Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc.

RS-2.0

D502.0um

 



 


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