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Magnesia nigra

Manganese (Mn, [Ar]3t/S4.v2), name and symbol after the Latin magnesia nigra (black magnesia). Isolated (1774) by the Swedish chemist Johan Gottlieb Gahn. Silvery, hard, brittle metal. [Pg.421]

In his memoir Be magnesia nigra, 1774, C. W. Scheele 2 pointed out that the chlorine water he discovered possessed the property of bleaching vegetable colours. He said ... [Pg.243]

H. Gahn, in Medical and Philosophical Commentaries by a Society in Edinburgh, ed. Duncan, Edinburgh, 1783, vii, 438 (BM 48. b. 1) magnesia nigra is reducible to a new semi-metal and that the marmor metallicum, or heavy spar, is a compound of vitriolic acid and a new species of earth, whose attraction to the vitriolic acid is very great. Both these have been made by my brother. ... [Pg.118]

See other pages where Magnesia nigra is mentioned: [Pg.21]    [Pg.539]    [Pg.454]    [Pg.21]    [Pg.1]    [Pg.2]    [Pg.2]    [Pg.151]    [Pg.248]    [Pg.118]    [Pg.556]    [Pg.325]    [Pg.629]    [Pg.630]    [Pg.635]    [Pg.635]    [Pg.635]    [Pg.212]    [Pg.219]    [Pg.21]    [Pg.539]    [Pg.454]    [Pg.21]    [Pg.1]    [Pg.2]    [Pg.2]    [Pg.151]    [Pg.248]    [Pg.118]    [Pg.556]    [Pg.325]    [Pg.629]    [Pg.630]    [Pg.635]    [Pg.635]    [Pg.635]    [Pg.212]    [Pg.219]   
See also in sourсe #XX -- [ Pg.151 , Pg.248 ]



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