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I'm no expert on this matter but I fear you can only tell pure aluminium from alloys by chemically analysing it or by testing its physical properties and comparing it to those of pure aluminum, I myself am looking for a way to purify alloys so I can make my own alloys, for you to be able to judge my answer I'll tell you that I am an industrial enginering student in my second year of university/college.

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12y ago

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