Lecture 20. The d -Block Elements. VII-VIII B groups
Lecture 20. The d -Block Elements. VII-VIII B groups. PhD. Halina Falfushynska. Manganese. Manganese is obtained mainly from the mineral pyrolusite , MnO 2 . Ferromanganese alloys are wear resistant and shock resistant and are used for railroad tracks, bulldozers, and road scrapers.
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