ABSTRACT
CH3 CH3 CASRN: 141-79-7; DOT: 1229; DOT label: Flammable liquid; molecular formula: C6H10O; FW: 98.14; RTECS: SB4200000; Merck Index: 12, 5968 Physical state, color, and odor: Clear, pale yellow liquid with a strong, peppermint, or honey-like odor. Experimentally determined detection and recognition odor threshold concentrations were 70 µg/m3 (17 ppbv) and 200 µg/m3 (50 ppbv), respectively (Hellman and Small, 1974). Melting point (°C): -52.9 (Weast, 1986) Boiling point (°C): 129.7 (Weast, 1986) Density (g/cm3): 0.8653 at 20 °C (Weast, 1986) 0.850 at 25 °C (Steele et al., 1997) Diffusivity in water (x 10-5 cm2/sec): 0.82 at 20 °C using method of Hayduk and Laudie (1974) Flash point (°C): 32.2 (Hawley, 1981) Lower explosive limit (%): 1.4 (NFPA, 1984) Upper explosive limit (%): 7.2 (NFPA, 1984) Henry’s law constant (x 10-6 atm⋅m3/mol): 4.01 at 20 °C (approximate - calculated from water solubility and vapor pressure) Ionization potential (eV): 9.08 ± 0.03 (Franklin et al., 1969) Soil organic carbon/water partition coefficient, log Koc: Unavailable because experimental methods for estimation of this parameter for ketones are lacking in the documented literature Octanol/water partition coefficient, log Kow: 1.25 using method of Hansch et al. (1968)
Soluble in acetone, alcohol, and ether (Weast, 1986) Solubility in water: 28 g/L at 20 ˚ C (quoted, Verschueren, 1983) Vapor density: 4.01 g/L at 25 °C, 3.39 (air = 1) Vapor pressure (mmHg): 8.7 at 20 °C (quoted, Verschueren, 1983) 14.95 at 30.52 °C (Steele et al., 1997) Exposure limits: NIOSH REL: TWA 10 ppm (40 mg/m3), IDLH 1,400 ppm; OSHA PEL: TWA 25 ppm (100 mg/m3); ACGIH TLV: TWA 15 ppm, STEL 25 ppm (adopted). Symptoms of exposure: Irritant to the eyes, skin, and mucous membranes. Narcotic at high concentrations (Patnaik, 1992). Toxicity: Acute oral LD50 for rats 1,120 mg/kg, mice 710 mg/kg (quoted, RTECS, 1985). Uses: Solvent for nitrocellulose, gums, and resins; roll-coating inks, varnishes, lacquers, stains, and enamels; starting material for synthesizing methyl isobutyl ketone; insect repellent; ore flotation.
