Silica polymorph and process for preparaing same

Details Silica polymorph and process for preparaing same Silica polymorph and process for preparaing same

C - Chemistry, Metallurgy

01

B

23/192

C01B 33/12 (2006.01) B01D 53/02 (2006.01) B01J 20/10 (2006.01) C01B 37/02 (2006.01)

Patent

CA 1093278

10638 SILICA POLYMORPH AND PROCESS FOR PREPARING SAME ABSTRACT OF DISCLOSURE Large crystals of a silica polymorph having a characteristic x-ray diffraction pattern, a specific gravity of 1.70 ? 0.05 g/cc.and a mean refractive index of 1.39 ? 0.01 after calcination in air at 600°C., are prepared by a hydrothermal process in which fluoride anions are included in the reaction mixture. The crystals, which can be as large as 200 microns, exhibit a substantial absence of infrared adsorption in the hydroxyl-stretching region and also exhibit an exceptional degree of hydrophobicity. S P E C I F I C A T I O N _ _ _ _ _ _ _ _ _ _ _ _ _

286011

Affiliated with

Also associated with

Rating

Silica polymorph and process for preparaing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silica polymorph and process for preparaing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silica polymorph and process for preparaing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-370278