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WESTCO™ ATO Twinkling Star Brand Antimony Trioxide CAS# 1309-64-4

WESTCO ATO is used as a fire retardant in rubber, plastics, wire & cable and other composites.  It must be used in conjunction with a halogen source, for example a chlorinated paraffin to be effective.

Packaging: 25 Kg woven plastic bags, Supersacks. Other packaging available

Storage: Keep cool and dry in closed original packaging with adequate ventilation. Avoid exposure to direct sunlight, 3 year shelf life.

SPECIFICATIONS:

Appearance: White crystalline powder
*Sb2O3

99.50% Min.

*PbO

0.10% Max.

*Fe2O3

0.006% Max.

*As2O3

0.06% Max.

*CuO

0.002% Max.

*325 mesh sieve residue

0.05% Max.

*Particle size

0.90 - 1.60 µm

*Whiteness

93.0% Min.

Specific gravity at 20°C

5.20 typical

*Actual tech data / technical data values reported on Certificate of Analysis

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Technical Data & SDS Sheets

Technical Product Sheets and SDS sheets are available for each of the chemicals listed. To access please click on the links above.
  • Western Reserve Chemical
  • 4837 Darrow Road
  • Stow, OH 44224

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