M. Mene, a French chemist, has just discovered that hydrate of alumina, prepared by decomposing alum with carbonate of soda, is a perfect substitute for animal charcoal in the decolorizing of liquids.
Activated carbon with extremely high adsorptive capacities is suitable for decolorizing applications, and may carry product specifications for methylene blue adsorption and have a molasses ...
and the noxious and decolorizing fumes produced by modern means of transportation. The exterior sculptures and the facades of the buildings generally undergo the worst damage. The monuments of Valetta ...