醋酸, 單碳有機羧酸, 其特徵是易燃和腐蝕性, 屬於第二類有機危險化學品法規.
環境溫度39℃時, 它會變成易燃危險. 純無水乙酸, 也稱為冰醋酸, 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.