A 3016 (OTTO) Aluminium, dia.6 x 6 mm, 99.9% Cas 7429-90-5 - used in as a reducing agent in organic chemistry. It can be produced from lithium hydride and aluminium trichloride. A 3016 (OTTO) Aluminium, dia.6 x 6 mm, 99.9% Cas 7429-90-5 - used non-ferrous metal.