What is the specific gravity of acetone?

Acetone has a specific gravity of approximately 0.79. Specific gravity is a dimensionless quantity that compares the density of a substance to the density of water, which is defined as 1.0 at standard conditions. A specific gravity of 0.79 means that acetone is less dense than water and will float on it. Understanding the specific gravity of substances like acetone is important in firefighting and hazardous material handling because it informs procedures regarding containment and spill response; for example, materials with a lower specific gravity than water can spread over surfaces more quickly and may require different firefighting or containment strategies.