Member, the American Ceramic Society.
Dehydration of Hydrous Zirconia with Methanol
Article first published online: 8 MAR 2005
Journal of the American Ceramic Society
Volume 71, Issue 4, pages C-190–C-191, April 1988
How to Cite
Jones, S. L. and Norman, C. J. (1988), Dehydration of Hydrous Zirconia with Methanol. Journal of the American Ceramic Society, 71: C-190–C-191. doi: 10.1111/j.1151-2916.1988.tb05871.x
Contributing Editor—B.M. Moudgil
Supported by Magnesium Elektron Inc., Manchester, England.
- Issue published online: 8 MAR 2005
- Article first published online: 8 MAR 2005
- Manuscipt No. 199915. Received July 21, 1987; approved October 1, 1987.
The washing of hydrous zirconia with alcohols to reduce the incidence of hard agglomerates on subsequent drying is well known. The results of methanol dehydration of hydrous zirconia (zirconium hydroxide), [Zr4(μ-OH)8(OH)8(H2O)8]˙ xH2O, show that only μ-OH groups are unaffected. This suggests two things: First, the removal of nonbridging hydrooxo groups and water with alcohols such as methanol leads to a reduction/elimination of hard agglomerates. Second, hard agglomerate formation is associated with condensation reactions involving nonbridging hydroxo groups (Zr-OH+HO-ZrZr-O-Zr+H2O).