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Gold/Mining/Energy : Gold Price Monitor

GDXJ 101.44

+3.5%

4:00 PM EST

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To: E. Charters who wrote (82470)	2/24/2002 5:23:44 AM
From: Richnorth	Read Replies (1) of 116756

The reaction 4 Fe + 3O2 = 2 Fe2O3 is a very slow one such as occurs at ambient temperatures. (Actually, there are many intermediate steps and the presence of water is required.) By contrast, the reaction 3 Fe + 2O2 = Fe3O4 (magnetic oxide of iron) occurs at high temperatures. For example, when fine iron filings are sprinkled over an oxy-acetylene torch or even a Bunsen burner flame, showers of sparks occur and Fe3O4 is formed at the same time. BTW, some people like to think of Fe3O4 as being a stoichiometric mixture of FeO (iron(II) oxide) and Fe2O3 (iron(III) oxide). But FeO + Fe2O3 = Fe3O4 happens to be just a "coincidence", i.e., the Rx does not occur as written according to the balanced equation.

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