ABSTRACT

CASRN: 7786-34-7; DOT: 2783; DOT label: Poison; molecular formula: C7H13O6P; FW: 224.16; RTECS: GQ5250000; Merck Index: 12, 6252 Physical state, color, and odor: Colorless to pale yellow liquid with a weak odor Melting point (°C): 6.7 (trans), 21.3 (cis) (NIOSH, 1997) Boiling point (°C): 106-107.5 at 1 mmHg (Windholz et al., 1983) Density (g/cm3): 1.25 at 20 °C (Windholz et al., 1983) Diffusivity in water (x 10-5 cm2/sec): 0.63 at 20 °C using method of Hayduk and Laudie (1974) Flash point (°C): 176 (open cup, NIOSH, 1997) Soil organic carbon/water partition coefficient, log Koc: Experimental methods for estimation of this parameter for miscible insecticides are lacking in the documented literature. However, its reactivity in water suggests its adsorption to soil will be nominal (Lyman et al., 1982). Octanol/water partition coefficient, log Kow: Not applicable because mevinphos hydrolyzes quickly in water. Solubility in organics: Miscible with acetone, benzene, chloroform, ethanol, ketones, toluene, and xylene. Soluble in carbon disulfide and kerosene (50 g/L) (Windholz et al., 1983; Worthing and Hance, 1991).