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.

Decolorizing and reusing textiles, specifically polyester fibers, which dominate the textile market, can be a way forward. Researchers from University of Fukui, Japan have optimized a ...