Assertion: periclase | /r/HasProperty | added as bond
Facets:
Source sentences:
text: Ideally, the particles of the reacting magnesia 5 and silica should be of the order of one micron or smaller in diameter, but practically it has been found possible to secure improved and satisfactory results when substantially all of the magnesia added as bond is finer than 50 microns 0 and a substantial portion is finer than 10 microns, and when substantially all of the silica added as bond is finer than 50 microns and more than half is finer than 10 microns.