What is the pH of 99% acetic acid?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The pH of 99% acetic acid (glacial acetic acid) is approximately 2.4 when measured directly, though measuring pH of such concentrated solutions can be challenging. When diluted, the pH will vary based on the final concentration. It's important to note that 99% acetic acid is extremely corrosive and dangerous to handle – it can cause severe burns to skin and damage to respiratory systems. This highly concentrated form should only be used in controlled laboratory or industrial settings with proper safety equipment.
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