Physical Properties of Ethanoic Acid by keypoint It is a colourless liquid with a sharp and pungent smell. The dilute solution has a sour taste It is very soluble in water It has a boiling point of 118°c It turns blue litmus paper red. Others are Viewing: Chemical Properties of Ethanoic Acid Ethanoic Acid Physical Properties of Acid Uses of Ethanoic Chemical Properties of Acid Physical properties of Methane Physical Properties of Ethyne