ABSTRACT

CASRN: 109-86-4; DOT: 1188; DOT label: Flammable liquid; molecular formula: C3H8O2; FW: 76.10; RTECS: KL5775000; Merck Index: 12, 6118 Physical state, color, and odor: Colorless liquid with a mild, ether-like odor. Experimentally determined detection and recognition odor threshold concentrations were <300 µg/m3 (<96 ppbv) and 700 µg/m3 (220 ppbv), respectively (Hellman and Small, 1974). Melting point (°C): -85.1 (Weast, 1986) Boiling point (°C): 124.6 (Dean, 1987) Density (g/cm3): 0.9647 at 20 °C (Weast, 1986) 0.96020 at 25.00 °C (Venkatesulu et al., 1997) 0.96005 at 25.00 °C (Chandrasekhar et al., 2000) 0.96002 at 25.00 °C, 0.95356 at 35.00 °C, 0.94715 at 45.00 °C (Das et al., 1999) Diffusivity in water (x 10-5 cm2/sec): 1.04 at 20 °C using method of Hayduk and Laudie (1974) Flash point (°C): 38.9 (closed cup), 43.9 (open cup) (Eastman, 1995) Lower explosive limit (%): 1.8 (NIOSH, 1997) Upper explosive limit (%): 14 (NIOSH, 1997) 14 at 0 °C (NFPA, 1984) Henry’s law constant (x 10-2 atm⋅m3/mol): 4.41, 3.63, 11.6, 3.09, and 3.813 at 10, 15, 20, 25, and 30 °C, respectively (EPICS, Ashworth et al., 1988) Ionization potential (eV): 10.13 (Lias et al., 1998) Soil organic carbon/water partition coefficient, log Koc: Unavailable because experimental methods for estimation of this parameter for methoxy alcohols

to soil will be nominal (Lyman et al., 1982). Octanol/water partition coefficient, log Kow: -0.77 at 28.0 °C (shake flask-refractive index, Korenman and Dobromyslova, 1975) Solubility in organics: Very soluble in acetone, dimethylsulfoxide, and 95% ethanol (quoted, Keith and Walters, 1992). Miscible with N,N-dimethylformamide, ether, and glycerol (Windholz et al., 1983). Solubility in water: Miscible (Price et al., 1974; Howe et al., 1987) Vapor density: 3.11 g/L at 25 °C, 2.63 (air = 1) Vapor pressure (mmHg): 6.2 at 20 °C, 14 at 30 °C (quoted, Verschueren, 1983) 9.4 at 25 °C (Banerjee et al., 1990) Environmental fate: Photolytic. Grosjean (1997) reported an atmospheric rate constant of 1.25 x 10-11 cm3/molecule⋅sec at 298 K for the reaction of methyl cellosolve and OH radicals. Based on an atmospheric OH concentration of 1.0 x 106 molecule/cm3, the reported half-life of methyl cellosolve is 0.64 d (Grosjean, 1997). Chemical/Physical. At an influent concentration of 1,000 mg/L, treatment with GAC resulted in an effluent concentration of 342 mg/L. The adsorbability of the carbon used was 132 mg/g carbon (Guisti et al., 1974). Exposure limits: NIOSH REL: TWA 0.1 ppm (0.3 mg/m3), IDLH 200 ppm; OSHA PEL: TWA 25 ppm (80 mg/m3); ACGIH TLV: TWA 5 ppm (16 mg/m3). Symptoms of exposure: Inhalation of vapors may cause headache, weakness, eye irritation, ataxia, and tremor (Patnaik, 1992). An irritation concentration of 368.00 mg/m3 in air was reported by Ruth (1986). Toxicity: Acute oral LD50 for guinea pigs 950 mg/kg, rats 2,460 mg/kg, rabbits 890 mg/kg (quoted, RTECS, 1985). Uses: Solvent for natural and synthetic resins, cellulose acetate, nitrocellulose, and some dyes; nail polishes; dyeing leather; sealing moisture-proof cellophane; lacquers, varnishes, enamels, wood stains; in solvent mixtures; perfume fixative; jet fuel de-icing additive.