Acetic acid obedo pii ma rangi ne pe ki ngwece matek. Tye ki rwom me mol pa 16.6°C, rwom me lyeto pa 117.9°C, ki pek pa 1.0492 (20/4°C), ma miyo en pek loyo pii. Refractive index ne tye 1.3716. Acid ma ki lwongo ni acetic acid ma ki lwongo ni glacial acetic acid doko gin ma nen calo ice ma piny 16.6°C, ma en aye gin mumiyo ki lwongo ni glacial acetic acid. En romo gonyo i pii, ethanol, ether, ki carbon tetrachloride.

Acetic acid ki cato i lobe mapol, ngec tye, ki wel ma ki dwoko piny ki twero nongo ne ka i dii kany.