استون

Acetone, also identified as propan-2-one, is a chemical compound with the formula C₃H₆O. It has a mass of 58.042 and a density of 0.7902. The substance exhibits a boiling point of 133 and a melting point that varies between -94.0, -94.8, -140, and -95. Its vapor pressure is 180, and it possesses a flash point of 0.

Safety data for acetone indicates a lower flammable limit of 2.5 and an upper flammable limit of 12.8. The autoignition temperature is 465, while the immediately dangerous to life or health level is 5950. Exposure limits include a time-weighted average of 2400 and a short-term limit of 2420. The median lethal dose is 50100, with a minimal lethal dose of 150000.

Additional physical properties include an ionization energy of 9.71, a speed of sound of 1203, and a refractive index of 1.3588. The standard enthalpy of formation is -216.50. In terms of molecular structure, acetone has one hydrogen bond acceptor and zero hydrogen bond donors.