Moshe (not his real name, lest the wrong people read this) looks like any other religious Jewish man in Jerusalem â dark hair, dark beard, wire-rimmed glasses, poring over a Talmudic tome in a yeshiva.No one would suspect that he is the great-great-grandson of a former Shah of Iran.oshe (not his real name, lest the wrong people read this) looks like any other religious Jewish man in Jerusalem â dark hair, dark beard, wire-rimmed glasses, poring over a Talmudic tome in a yeshiva.
This article is about aluminium(III) oxide, Al 2 O 3. For other uses, see Aluminium oxide (compounds) . Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.
Activated alumina is a filter media made by treating aluminum ore (bauxite) so that it becomes porous and highly adsorptive. It consists mainly of Al2O3. The production process includes calcination at 500Â°C, which at the same time removes all organic substances.ctivated alumina is capable of removing a variety of substances including excessive fluoride, arsenic and selenium. The fluoride removal process is based on adsorption on the surface of the activated alumina.