ABSTRACT
CASRN: 108-84-9; DOT: 1233; DOT label: Combustible liquid; molecular formula: C8H16O2; FW: 144.21; RTECS: SA7525000 Physical state, color, and odor: Colorless liquid with a fruity odor Melting point (°C): -64.4 (NIOSH, 1997) Boiling point (°C): 158 (Weast, 1986) 146.3 (Hawley, 1981) Density (g/cm3): 0.8658 at 20 °C (Weast, 1986) Diffusivity in water (x 10-5 cm2/sec): 0.65 at 20 °C using method of Hayduk and Laudie (1974) Flash point (°C): 45 (NIOSH, 1997) Henry’s law constant (x 10-3 atm⋅m3/mol): 9.5 at 20 °C (approximate - calculated from water solubility and vapor pressure) Soil organic carbon/water partition coefficient, log Koc: Unavailable because experimental methods for estimation of this parameter for aliphatic esters are lacking in the documented literature Octanol/water partition coefficient, log Kow: 3.37 using method of Hansch et al. (1968) Solubility in organics: Soluble in alcohol and ether (Weast, 1986) Solubility in water: 0.008 wt % at 20 °C (NIOSH, 1997) Vapor density: 5.89 g/L at 25 °C, 4.98 (air = 1) Vapor pressure (mmHg at 20 °C): 4 (NIOSH, 1997)
Chemical/Physical. Slowly hydrolyzes in water forming 4-methyl-2-pentanol and acetic acid. Exposure limits: NIOSH REL: TWA 50 ppm (300 mg/m3), IDLH 500 ppm; OSHA PEL: TWA 50 ppm; ACGIH TLV: TWA 50 ppm (adopted). Symptoms of exposure: An irritation concentration of 600.00 mg/m3 in air was reported by Ruth (1986). Toxicity: Acute oral LD50 for rats 6,160 mg/kg (quoted, RTECS, 1985). Uses: Solvent for nitrocellulose and other lacquers.
