|
chemical composition:
|
SIO2 99.9%
|
|
Density:
|
2.2(g/cm3)
|
|
Degree of hardness moh' scale :
|
6.6
|
|
Melting point:
|
1732°C
|
|
Working temperature :
|
1100°C
|
|
Max temperature can reach in a short time :
|
1450°C
|
|
Acid tolerance:
|
30 times than Ceramics , 150 times than Stainless steel
|
|
Visible light transmittance :
|
above 93%
|
|
UV spectral region transmittance:
|
80%
|
|
Resistance value :
|
10000 times than ordinary glass
|
|
Annealing point:
|
1215°C
|
|
softening point:
|
1730°C
|
|
Chemical Composition(ug/g)
|
|
|
|
|
|
|
|
|
|
|||||||||
|
AL
|
Li
|
K
|
Na
|
Ca
|
Fe
|
Ti
|
Mg
|
Cu
|
B
|
|||||||||
|
3.2
|
0.4
|
0.9
|
2.1
|
0.5
|
0.8
|
0.6
|
0.22
|
0.15
|
0.29
|
|||||||||
