Physical state and appearance: Liquid. (volatile, mobile liquid ) Odor: Sweetish. Pungent. Ethereal. Taste: Burning. Sweet. Molecular Weight: 74.12g/mole Color: Clear Colorless. p. 4 pH (1% soln/water): Not available. Boiling Point: 34.6°C (94.3°F) Melting Point: -116.3°C (-177.3°F) Critical Temperature: 192.7°C (378.9°F) Specific Gravity: 0.7134 (Water = 1) Vapor Pressure: 58.6 kPa (@ 20°C) Vapor Density: 2.56 (Air = 1) Volatility: Not available. Odor Threshold: 0.83 ppm Water/Oil Dist. Coeff.: The product is more soluble in oil; log(oil/water) = 0.9 Ionicity (in Water): Not available. Dispersion Properties: See solubility in water, acetone. Solubility: Soluble in acetone. Partially soluble in cold water