Do you know graphene oxide?

Graphene oxide is an oxide formed by the oxidation of graphite by strong acid. It adopts the oxidation reaction of potassium permanganate in concentrated sulfuric acid and graphite powder to obtain a tan edge derivative carboxylic acid base and pheno…

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AEC-9Na Sodium alcohol ether carboxylate, 28%

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How to check whether the galaxy s10+ screen replacement has been changed after repairing the mobile phone

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