Manganese Bronze Holdings combined with Manganese motorcycle production to form Norton Villiers Triumph. BSA Guns was liquidated in 1986. BSA's components businesses became Manganese Bronze Components Division, comprising sintering, precision casting and metal powders; this division was sold in 2003 and went bankrupt a short period later. In 1984, the London taxicab dealer Mann & Overton was bought by Manganese. In 1992 the name Carbodies Limited was dropped and the company was renamed LTI Limited, comprising three divisions: LTI Carbodies, LTI Mann and Overton and London Taxi Finance. The trading name was London Taxis International. In January 2003 Manganese launched Zingo Taxi, an
Manganese dioxide silver or barium. is often called Hollandite, after a closely related mineral. Naturally occurring manganese dioxide contains impurities and a considerable amount of manganese(III) oxide. Only a limited number of deposits contain the γ modification in purity sufficient for the battery industry. Production of batteries and ferrite (two of the primary uses of manganese dioxide) requires high purity manganese dioxide. Batteries require "electrolytic manganese dioxide" while ferrites require "chemical manganese dioxide". One method starts with natural manganese dioxide and converts it using dinitrogen tetroxide and water to a manganese(II) nitrate solution. Evaporation of the water, leaves the crystalline nitrate salt.