AQUEOUS systems were reported earlier in which a manganese-phenothiazine auto-oxidation led to the emergence of semiquinone free-radicals of the drugs 1. The mildness of the required conditions ...

After the aqueous-based recycling method, the aluminium and lithium end up in the (greenish blue) liquid. The other metals, such as cobalt, nickel and manganese, remain in the dark “solids ...