ABSTRACT
CASRN: 108-18-9; DOT: 1158; DOT label: Flammable liquid; molecular formula: C6H15N; FW: 101.19; RTECS: IM4025000; Merck Index: 12, 3240 Physical state, color, and odor: Colorless liquid with an ammonia-like odor. Experimentally determined detection and recognition odor threshold concentrations were 50 µg/m3 (130 ppbv) and 190 µg/m3 (380 ppbv), respectively (Hellman and Small, 1974). Melting point (°C): -61 (Weast, 1986) -96.3 (quoted, Verschueren, 1983) Boiling point (°C): 83.9 (Resa et al., 2000) Density (g/cm3): 0.7169 at 20 °C (Weast, 1986) 0.71095 at 25.00 °C (Resa et al., 2000) Diffusivity in water (x 10-5 cm2/sec): 0.72 at 20 °C using method of Hayduk and Laudie (1974) Dissociation constant, pKa: 11.13 at 21 °C (Gordon and Ford, 1972) Flash point (°C): -6.7 (NIOSH, 1997) -1.11 (open cup, Hawley, 1981) Lower explosive limit (%): 1.1 (NIOSH, 1997) Upper explosive limit (%): 7.1 (NIOSH, 1997) Ionization potential (eV): 7.73 ± 0.03 (Franklin et al., 1969) Soil organic carbon/water partition coefficient, log Koc: Unavailable because experimental methods for estimation of this parameter for aliphatic amines are lacking in the documented literature. However, its miscibility in water suggests its adsorption to soil will be nominal (Lyman et al., 1982). Octanol/water partition coefficient, log Kow: 1.40 (Hansch et al., 1995)
Soluble in acetone, alcohol, benzene, and ether (Weast, 1986) Solubility in water (wt %): Miscible at <28.0 °C, 12.39 at 28.0 °C, 10.32 at 30.0 °C, 6.35 at °40.0, 4.57 at 50.0 °C, 2.90 at 60.0 °C, 2.15 at 70.0 °C, 1.76 at 80.0 °C, 1.61 at 84.0 °C (shake flask-GC, Stephenson, 1993b). Vapor density: 4.14 g/L at 25 °C, 3.49 (air = 1) Vapor pressure (mmHg): 37.9 at 10 °C, 49.25 at 15 °C, 63.5 at 20 °C, 80.75 at 25 °C, 102.35 at 30 °C, 157.75 at 39.95 °C (Davidson, 1968) Environmental fate: Photolytic. Low et al. (1991) reported that the photooxidation of aqueous secondary amine solutions by UV light in the presence of titanium dioxide resulted in the formation of ammonium and nitrate ions. Chemical/Physical. Reacts with acids forming water-soluble salts. Exposure limits: NIOSH REL: TWA 5 ppm (20 mg/m3), IDLH 200 ppm; OSHA PEL: TWA 5 ppm; ACGIH TLV: TWA 5 ppm (adopted). Symptoms of exposure: Severe irritation of eyes, skin, and respiratory tract. Contact with skin causes burns. Visual disturbance and cloudy swelling of cornea accompanied by partial or total loss of vision (Patnaik, 1992). Toxicity: LC50 (96-h) for rainbow trout 37 mg/L (Spehar et al., 1982). LC0 (24-h) and LC100 (24-h) for creek chub in Detroit river water were 40 and 60 mg/L, respectively (Gillette et al., 1952). Acute oral LD50 for guinea pigs, 2,800 mg/kg, mice 2,120 mg/kg, rats 770 mg/kg, rabbits 4,700 mg/kg (quoted, RTECS, 1985). Uses: Intermediate; catalyst; organic synthesis.
