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I:X'I'OXNI?"I-PIP-MANGI3 http://ace.orst.cdu/cgi-biniinfs/01/pips/maneb.htm <br /> readily transformed into ETU, which is more persistent [20]. Since it is strongly bound by most <br /> soils and is not highly soluble in water [20], it should not be very mobile. It therefore does not <br /> represent a significant threat to groundwater. Its breakdown product, ETU, may however be more <br /> highly mobile. Maneb breaks down under both aerobic and anaerobic soil conditions [4]. In one <br /> study, residues of maneb did not leach below the top 5 inches of soil [4]. <br /> • Breakdown in water: Maneb degraded completely within 1 hour under anaerobic aquatic <br /> conditions. <br /> • Breakdown in vegetation: The main metabolite of maneb in plants is ethylenethiourea (ETU); this <br /> is then rapidly metabolized further. Significant amounts of ETU were formed in cooking vegetables <br /> that had been experimentally treated with maneb. <br /> Physical Properties: <br /> • Appearance: Maneb is a yellow powder with a faint odor [3]. It is a polymer of <br /> ethyl ene(bis)dithiocarbamate units linked with manganese. <br /> • Chemical Name: manganese ethylenebis(dithiocarbamate) (polymeric) [3] <br /> • CAS Number: 12427-38-2 <br /> • Molecular Weight: 265.29 <br /> • Water Solubility: 6 mg/L (estimated) [3] <br /> • Solubility in Other Solvents: Practically insoluble in common inorganic solvents [3] <br /> • Melting Point: Decomposes before melting @ approximately 192 C [3] <br /> • Vapor Pressure: Negligible @ 20 C [3] <br /> • Partition Coefficient: Not Available <br /> • Adsorption Coefficient: <2000(estimate) <br /> Exposure Guidelines: <br /> • ADI: 0.03 mg/kg/day [33] <br /> • MCL: Not Available <br /> • RfD: 0.05 mg/kg/day [27] <br /> • PEL: Not Available <br /> • HA: Not Available <br /> • TLV: Not Available <br /> Basic Manufacturer: <br /> ELF Atochem North America, Inc. <br /> 2000 Market Street <br /> Philadelphia, PA 19103-3222 <br /> • Phone: 215-419-7219 <br /> • Emergency: 800-523-0900 <br /> References: <br /> References for the information in this PIP can be found in Reference List Number 4 <br /> Sof4 <br /> 5/15/00 11:09 AM <br />