Seeking advice on electronic-grade sulfuric acid production process
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Does anyone knowledgeable about this know the production process for electronic-grade sulfuric acid? Could you please provide some information?
It’s just distillation; what other method could there be? It’s just that the material used for the distillation equipment needs to be carefully chosen
Are there any resources on this topic? Could you recommend some?
Industrial fuming sulfuric acid is used for evaporation, followed by gas-phase cooling and impurity removal; thereafter, it is absorbed with ultra-pure water. After sulfur dioxide is removed, the resulting solution is prepared into electronic-grade sulfuric acid with the desired concentration using ultra-pure water
All-glass system, vacuum distillation.
May I ask, how is electronic-grade nitric acid produced?