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ESSTECH Specialty Chemicals > Glass Fillers > Strontium Borosilicate Glasses > Item # V-124-1110  
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Item # V-124-1110, Strontium Borosilicate Glasses

Our Strontium Borosilicate glasses have the lowest refractive indices (1.500) of our glass filler products. They also have a low coefficient of thermal expansion. CAS # 65997-17-3
Shipped in standard packages of 50 lb units.

Typical Properties · Composition

Typical Properties


E 4000

Median Particle Size (Microns)


Coefficient of Thermal Expansion

3.3 ppm/ºC

Refractive Index



2.44 g/mL

CAS Registration Number



Strontium Oxide

14.0 %

Silicon Dioxide

57.0 %

Boron Oxide

14.0 %


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The claims made in this catalog are believed to be accurate but all are made without guarantee, since the conditions of use are beyond Esstech, Inc.'s control. The information in this catalog is solely provided as a guide. Esstech, Inc. disclaims any liability in connection with the use of the information, and does not warrant against infringement by reason of the use of its products in combination with other materials or process.
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