How Long Should Oxalic Acid Soak the Three-Way Catalytic Converter?

1 Answers
StHenry
07/29/25 8:14pm
Oxalic acid soaking the three-way catalytic converter takes 30 minutes to 1 hour, ensuring all areas are evenly soaked to avoid uneven treatment. The three-way catalytic converter transforms harmful gases such as carbon monoxide and hydrocarbons emitted from vehicle exhaust into harmless gases through oxidation and reduction reactions. When high-temperature exhaust passes through the purification device, the catalyst in the three-way catalytic converter enhances the activity of harmful gases, promoting redox chemical reactions to purify the exhaust. Oxalic acid soaking can be used for rust removal, but caution is required. Oxalic acid has strong corrosiveness to stainless steel, and high-concentration oxalic acid can also corrode the skin. Additionally, the generated acid oxalate salts are highly soluble and somewhat toxic. If skin comes into contact with oxalic acid, rinse with water immediately.
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