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         products

  
 

Fused silica products

Fused silica crucibles are used for nonferrous smelting.

Chemical composition and physical properties of fused silica crucible
 

Items 

 

Values 

SiO2

99.9-99.99%

Fe2O3

10-25ppm

CaO

10-20ppm

Al2O3

20-30ppm

K2O

20-25ppm

Na2O

10-20ppm

Appearance 

transparent

Colour

White 

Hardness 

7.0mohs

pH value

6.0

 

 

 

 

 

 

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