Spectrophotometric titration of aliphatic amines with cinnamic anhydride

✍ Scribed by Kenneth A. Connors; Wen-Hai Hong

• Publisher: Elsevier Science
• Year: 1968
• Tongue: English
• Weight: 312 KB
• Volume: 43
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(00)89225-9

✦ Synopsis

Vapor firesswe measarvewae~tts. The temperatures at which all of the 'readily sublimable compounds exhibited vapor pressures of I mm of mercury were measured by a technique similar to that proposed by SMITH AND MENZIES~~ and modified by lkumt~mxtll.

The data obtained arc listed in Table II. TIzevnbaZ stability vncaszwements. The thermal stabilities of all the readily sublimed compounds were checkecl at 100~. The following compounds showed signs of slight decomposition after heating at this temperature for 24 h in sealed glass vials: 2, 3, 7, 11, 12, 14, A darkening of the material was employed as a sign of decomposition. All others showed no observable decomposition under these conditions.

The authors wish to thank Union Carbide Corp., Nuclear Division, Oak Ridge, Term., for financial support.

Ik~artme~~t of Clremistry,

Univevsit~~ of Y'e9lnessee, Kr'stosville Tegaft. 37916 (U.S.A.