Vaughn

E. A. Vaughn, Nonwovens WorldFactbook 1991, Miller Ereman, San Erancisco, Calif., 1990. 

E. A. Vaughn, Nonwoven Fabric Primer and Reference Sampler, INDA, Cary, N.C., 1992. 

Dried with Linde type 5A molecular sieves or Na2S04 and fractionally distd at reduced pressure. Alternatively, it was refluxed with, and distd from, BaO. Also purified by fractional crystn from the melt and distd from zinc dust. Converted to its phosphate (m 135°) or picrate (m 223°), which were purified by crystn and the free base recovered and distd. [Packer, Vaughn and Wong J Am Chem Soc 80 905 1958.] The procedure for purifying via the picrate comprises the addition of quinoline to picric acid dissolved in the minimum volume of 95% EtOH to yield yellow crystals which are washed with EtOH and air dried before recrystn from acetonitrile. The crystals are dissolved in dimethyl sulfoxide (previously dried over 4A molecular sieves) and passed through a basic alumina column, on which picric acid is adsorbed. The free base in the effluent is extracted with n-pentane and distd under vacuum. Traces of solvent are removed by vapour phase chromatography. [Mooman and Anton J Phys Chem 80 2243 1976.]... 

Ms. Sue Vaughn, Title III Coordinator State Emergency Response Commission Department of Environmental Protection State Office Building, Room 161 165 Capitol Avenue Hartford, CT06106 (203) 566-4856... 

Nonionic Surfactants Polyoxyalkylene Block Copolymers, edited by Vaughn M. Nace... 

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