Vanadium: the ‘beautiful metal’ that stores energy

The production of maleic anhydride by the air oxidation of benzene was studied using a vanadium pentoxide catalyst [Chem Eng Sci, 43, 1051 (1988)]. The reactions that occur are:C6H6 O2 → C4H2O3 2 CO2 2 H2OC4H2O3 3 O2 → 4 CO2 H2OC6H6 15 O2 → 6 CO2 3 H2OBecause these reactions were carried out in excess air, volume change with reaction can be neglected. The reaction sequence can be represented as follows:A → BA → CC → Dwhere A = benzene, B = maleic anhydride, C and D = un

Do You Know Which Elements Are Transition Metals?

2.7: Magnetic Properties of Atoms and Ions