Question

Why acetic acid called "glacial acetic acid"??

Answer 1

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When Ethanoic Acid is cooled at a temprature of 290℃ it then freezed to form a solid which looks absolutely like a glacier.
Hence, Ethanoic Acid is also known as " Glacial Acetic Acid ".

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Answer 2

Answer:

Acetic acid that contains a very low amount of water (less than 1%) is called anhydrous (water-free) acetic acid or glacial acetic acid. The reason it's called glacial is because it solidifies into solid acetic acid crystals just cooler than room temperature at 16.7 °C, which ice.

Explanation:

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