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[PPG Industries] A registered trademark for a series of Hydrated silica powders. Hi-Sil® powders have been used in insecticides as driers. They have also been used in paints and papers as thickeners, fillers, and brighteners.
Resources and Citations
- PPG Industries: Silica Products
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993