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To: E. Charters who wrote (82470)	2/24/2002 3:50:49 AM
From: maceng2	Respond to of 116753

I thought both the buildings went up at the same time? Was one tower more rusty then the other?? I'd put Leslie E. Robertson Asc. in the bids to rebuild the towers if given the decision. After all he said their collapse was "his fault". The first thing all parties must do in any accident is first admit they might have been a part of it. Message 16843980 Thus I find he works to a high professional standard and a first rate human being. Unlike some other guys that have been in the news recently who just kept quiet. "Financial engineers" have set a low standard recently.

To: E. Charters who wrote (82470)	2/24/2002 5:23:44 AM
From: Richnorth	Read Replies (1) \| Respond to of 116753

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.