ANTIOXIDANTS, INHIBITORS, STABILIZERS, ANTIFOULANTS AND METAL DEACTIVATORS FOR USE IN HYDROCARBON MIXTURES INCLUDING GASOLINE, DIESEL FUEL AND FUEL OIL; DIESEL FUEL CETANE NUMBER IMPROVERS; CATALYSTS AND REAGENTS FOR OXIDATION OF MERCAPTANS; RUBBER ANTIOZONANTS; LABORATORY REAGENTS FOR ANALYZING HYDROCARBONS; CATALYST SULFIDING AGENTS; CHAIN EXTENDERS AND CROSS-LINKING AGENTS FOR PLASTICS; AND SOLVENTS FOR THE SEPARATION OF HYDROCARBONS BY LIQUID-LIQUID EXTRACTION