Acetic acid, he ʻakika carboxylic organik hoʻokahi, ʻike ʻia ʻo ia e kona flammability a me nā waiwai corrosive, e hāʻule ana ma lalo o ka māhele o nā hoʻoponopono kemika pōʻino kūlohelohe ʻano II.
I ka mahana kaiapuni o 39 ℃, lilo ia i mea hikiwawe ke ahi. Anhydrous acetic acid maʻemaʻe, ʻike pū ʻia ʻo glacial acetic acid, he paʻa waihoʻoluʻu ʻole e huki i ka makū a paʻa i ka 16.6 ℃ (62℉) i loko o nā kristal kala ʻole. Hōʻike ka hoʻonā ʻana i ka acidity haʻahaʻa a me ka corrosiveness nui, oiai ua hiki i kona mau mahu ke hoonaukiuki i ka maka a me ka puka ihu.