MIT Foundry aluminum chlorine cleaning operations
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How do you get rid of it? Back in the old days when I was a student working in the foundry at MIT, we just took some chlorine gas, had a little steel lance, stuck it in there, and bubbled chlorine through. The chlorine would react with the hydrogen and aluminum, form hydrogen chloride gas, which we just blew off into the air in Cambridge. They don't let us do that anymore. How do you degas your aluminum now?