Products for Analytical,Measuring and Scientific Application
< Features >
As new advances in chemical sciences continue, applications
for quartz glass wool keep increasing, thanks to the purity and
uniformity of quartz material.
Made of transparent quartz glass, the wool constitutes a very
fine fabric with diameter consistency, extremely high purity and
chemical resistance.
For pollution control applications, it is used as a collection filter
in high precision measurements while in the semiconductor
industry, it is used as furnace core tube packing material in high
temperature furnaces because of its high purity and heat resistance.
< Types of Quartz Glass Wool >
10 grams per pack
1.In fine grade (2-6 micron fiber diameter).
Typical applications include gas chromatography filler material and filters.
2.In coarse grade (4-9 micron fiber diameter).
Typically used asinsulation material or dust tube fillers.
< Chemical Resistance >
Unaffected by most acids except HF and phosphoric.
Subject to corrosion with alkaline salts and certain types of
metal under high temperature.
< Temperature Resistance >
Basically the same as transparent quartz glass but somewhat
lower in heat resistance due to its high mass to surface area
ratio.
Limit is 1100 degrees (C) for continuous high temperature operation.
10 hours at 1200 degrees (C) will damages its elasticity and 2 hours
at 1300 degrees (C) will result in cristolabite formation under X ray
inspection.
Temperature vs. Time 1 hr @ 1000 C 1 hr @ 1200 C 1 hr @ 1300 C
ShrinkageFactor 0% 10% 30%
<Purity> ppm not exceeding these values
Al2O3 Fe2O3 K2O CaO TiO2
<20 <10 <10 <10 <2
