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|Title:||Complex formation between dimethyl methylphosphonate and hexafluoroisopropanol|
|Authors:||United States. Army. Office of the Chief of Engineers|
Leggett, Daniel C.
Dimethyl Methylphosphonate (DMMP)
|Publisher:||Cold Regions Research and Engineering Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 90-22.|
Abstract: A solvent/water partitioning method was used to measure the complex fonnation between dimethyl methylphosphonate (DMMP) and hexafluoroisopropanol (HFIP). The highest formation constant was obtained when n-hexane was used as the partitioning solvent. Other solvents all interfered to some extent with complex fonnation, probably by interacting with HFIP. The log formation constant in carbon tetrachloride was 3.46 ± 0.10 at 21°C, which was similar to literature estimates for other phosphonates. The data supports formation of H-bond charge transfer complexes as the mechanism for HFIP interaction with phosphonates and as primarily responsible for HFIP extraction of these compounds from water.
|Rights:||Approved for Public Release, Distribution is Unlimited|
|Appears in Collections:||Special Report|
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