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Latest Potassium permanganate Stories

2009-03-30 13:40:06

The Lake County, Ohio, utilities department said a malfunction with a chemical feeder caused many customers to receive pink water from their faucets. The department said the 8 p.m.

2007-02-02 18:00:51

By Sahl, Jason W; Munakata-Marr, Junko; Crimi, Mic


Latest Potassium permanganate Reference Libraries

28_e6b650b9d34b53b750c67f62d239fa16
2005-05-26 09:07:13

Manganese is a chemical element in the periodic table that has the symbol Mn and atomic number 25. Notable characteristics Manganese is a gray-white metal, resembling iron. It is a hard metal and is very brittle, fusible with difficulty, but easily oxidized. Manganese metal is ferromagnetic only after special treatment. The most common oxidation states of manganese are +2, +3, +4, +6 and +7, though oxidation states from +1 to +7 are observed. Mn2+ often competes with Mg2+ in...

28_9d51416e62ebabdd62f3b9c4130f137d
2005-05-25 18:56:05

Pyrolusite is a mineral consisting essentially of manganese dioxide (Mn02) and is important as an ore of manganese. It is a soft, black, amorphous mineral, often with a granular, fibrous or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black streak, and readily soils the fingers. The specific gravity is about 4.8. Pyrolusite and rhodochrosite are among the most common manganese minerals. The metal is obtained by reduction of the oxide...

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Word of the Day
palinode
  • A poem in which the author retracts something said in an earlier poem.
The word 'palinode' comes from Greek roots meaning 'again' and 'song'.
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