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Thermochemical behaviour of crown ethers in the mixtures of water with organic solvents.: Part V. Enthalpy of solution of 12-crown-4 and 18-crown-6 ethers in the mixtures of water with dimethylsulfoxide or N,N-dimethylformamide at 298.15 K

✍ Scribed by Małgorzata Jóźwiak

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 736 KB
Volume: 107
Category: Article
ISSN: 0167-7322
DOI: 10.1016/s0167-7322(03)00148-x

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Enthalpies of solution of 15-crown-5 ether in dimethylsulfoxide-water, N,Ndimethylformamide-water, N,N-dimethylaeetamide-water, and hexamethylphosphoramidewater systems have been measured at 298.15K. The plot of enthalpy of solution of 15C5 in these mixtures exhibits maximum at x w ~ 0.5 for DMSO an