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(II) sulfate highly characteristic. Typically, manganese ores are purified by their conversion to manganese(II) sulfate. Treatment of aqueous solutions of the sulfate with sodium carbonate leads to precipitation of manganese carbonate, which can be calcined to give the oxides MnO. In the laboratory, manganese sulfate can be made by treating manganese dioxide with sulfur dioxide: It can also be made by mixing potassium permanganate with sodium bisulfate and hydrogen peroxide. Manganese sulfate is a by-product of various industrially significant oxidations that use manganese dioxide, including the manufacture of hydroquinone and anisaldehyde. Electrolysis of manganese sulfate yields manganese dioxide, which is called EMD