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EXTOXNET PIP-FTIIEPHONr7ttp://ace.orst.edu/cgi-biNmfs/0I/pips/ethephon.htm <br /> PHYSICAL PROPERTIES AND GUIDELINES <br /> 4 <br /> Physical Properties: <br /> • Appearance: colorless solid <br /> • Chemical Name: 2-chloroethylphosphonic acid (IUPAC, CA) (1) <br /> • CAS Number: 16672-87-0 <br /> • Molecular Weight: 144.5 <br /> • Water Solubility: readily soluble in water <br /> s Solubility in Other Solvents: readily soluble in methanol, ethanol, isopropanol, acetone, ether and <br /> other polar organic solvents. Slightly soluble in non-polar solvents such as benzene and toluene (1) <br /> • Melting Point: 74-75 degrees C (165-167 degrees F) (1, 242, 313, 314, 302) <br /> + Vapor Pressure: <I 0 to the minus 7 mbar at 20 degrees C (1); 7.5 x 10 to the minus 5 mmHg at 20 <br /> degrees C (302) <br /> • Partition Coefficient: Not Available <br /> • Adsorption Coefficient: Not Available <br /> Exposure Guidlines: <br /> • ADI: 0.05mg/kg b.w. <br /> + MCL: Not Available <br /> • RfD: 0.005 mg/kg/day I <br /> • PEL: Not Available <br /> • HA: Not Available <br /> i <br /> • TLV: Not Available <br /> BASIC MANUFACTURER: <br /> Rhone-Poulenc <br /> P.O. Box 120142 <br /> T.W. Alexander Drive <br /> Research Triangle Park, NC 27709 <br /> REFERENCES <br /> References for the information in this PIP can be found in Reference List Number 10 <br /> I <br /> DISCLAIMER: The information in this profile does not in any way replace or supersede the information <br /> on the pesticide product labelling or other regulatory requirements. Please refer to the pesticide product <br /> labelling. I <br /> I <br /> i. <br /> ,of4 1/26/008:58 AM ;' <br />