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uttessegap

01-15-2020, 08:38 AM
why does the bubble apear a few minutes later after putting aluminum sheet into dilute sulphuric acid?Because there is oxide on the surface of aluminum, the reaction will be quicker after polishing the oxide with abrasive paper.it firstly etches off the oxide on the surface of aluminum, and then reacts with aluminum, generating bubble.Other related question
ask aluminium Forum > My Category > aluminium faq > why does the bubble apear a few minutes later after putting aluminum sheet into