ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The formation of a poorly crystalline layer-lattice type of magnesium silicate has been demonstrated in mixtures of magnesium hydroxide with hydrated silicic acid that has been intimately combined via grinding and then aged at room temperature for six months. X-ray diffractometry, Fourier transform infrared spectroscopy, and 29Si solid-state magic-angle spinning nuclear magnetic resonance show the product to be similar to that which has been obtained from the same mixture via hydrothermal treatment at a temperature of 80°C for 24 h. This reaction does not occur to any appreciable extent when the silicic acid is replaced by silica gel, which suggests that the hydration water has an essential role, probably in the dissolution of the silica in the alkaline environment of the magnesium hydroxide.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.1998.tb02405.x
