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i to soil particles, it is not readily removed [58]. It is practically insoluble in water, and therefore is unlikely to be appreciably mobile in most instances, unless the sorptive capacity of the soil is exceeded. Oxyfluorfen did not leach below 4 inches in any soil except sand [11]. • Breakdown in water: In water, oxyfluorfen is rapidly decomposed by light [3]. Because oxyfluorfen is nearly insoluble in water and has a tendency to adsorb to soil, it will be sorbed to suspended particles or sediments [58,109]. • Breakdown in vegetation: There is very little movement of oxyfluorfen within treated plants. It is not readily.metabolized by plants, but since it is not readily taken up by roots, residues in plants are generally very low [58]. Residues of oxyfluorfen accumulated in carrots and oats grown on previously treated fields, but not in cotton or lettuce [109]. E Physical Properties: • Appearance: Oxyfluorfen is a white to orange or red-brown crystalline solid with a smoke-like odor [1,10$]. • Chemical Name: 2-chloro-alpha,alpha,alpha-trifluoro-p-tolyl 3-ethoxy-4-nitrophrnyl ether [1] • CAS Number: 42874-03-3 • Molecular Weight: 361.70 • Water Solubility: 0.1 mg/L [I] • Solubility in Other Solvents: v.s. in most organic solvents (e.g acetone, cyclohexanone, isophorone ) [1] • Melting Point: 84-85 C [1] • Vapor Pressure: 0.026 mPa @ 25 C [1] • Partition Coefficient: 4.4683 [1] • Adsorption Coefficient: 100,000(estimated) [1 1] Exposure Guidelines: • ADI: Not Available • MCL:Not Available • RiD: 0.003 mg/kg/day [13] • PEL: Not Available • HA:Not Available • TLV:Not Available Basic Manufacturer: Rohm and Haas Co. Agricultural Chemicals 100 Independence Mall West Philadelphia, PA 19106 • Phone: 215-592-3000 • Emergency: Not Available References: References for the information in this PIP can be found in Reference List Number 10