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Heavymetal-containingsolutionsandsolids:containerE.StirRaneynickel(also:Urushibaranickel)intheformofanaqueouss
USPensionintohydrochloricacid(Cat.No.100312)untildissolved(containerE).NeitherRaneynickelitselfnoranyfilterresiduesshouldbeallowedtodryout,otherwisetheywillspontaneouslyigniteinair.Inthiscontext,heavymetalmeansanycompoundofantimony,arsenic,cadmium,chromium(VI),copper,lead,nickelandtin,aswellasthesesubtancesinmetallicform,iftheyareclassifiedashazardous(acc.toAbfallverzeichnisV-WasteCatalogueOrdinance,Appendix3).Otherheavymetalsshouldbecollectedseparately.