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Acetic acid, a single-carbon organic carboxylic acid, is characterized by its flammability and corrosive properties, falling under the category of Type II organic hazardous chemical regulations.

At environmental temperatures of 39℃, it becomes a flammable hazard. Pure anhydrous acetic acid, also known as glacial acetic acid, is a colorless solid that attracts moisture and solidifies at 16.6℃ (62℉) into colorless crystals. Its solution exhibits mild acidity and significant corrosiveness, while its vapors can provoke irritation in the eyes and nostrils.