PHYSICAL PROPERTIES OF FATTY ACIDS 



53 



forms, no such variations are to be found. 

 Table 14. 



These values are summarized in 



Table 14 

 Melting Points of Isomeric cis- and irans-OcTAOECENOic Acids (C18H34O2) 



" a- and /3-forms, respectively. 



* H. R. Le Sueur, ./. Chem. Soc, 85, 1708-1713 (1904). 



"^ G. Ponzio, Alti accad. sci. Torino, 39, 552-560 (1903-1904); Gazz. chim. Hal. 

 77-85(1904). 



-^ A. Eckert and O. Halla, Monatsh., 34, 1815-1824 (1913). 



" T. P. Hilditch and E. E. Jones, J. Soc. Chem. Ind., 46, 174-177 (1927). 



! J. C. Smith, J. Chem. Soc., 1939, I, 974-980. 



" A. Griin and W. Czerny, Ber., 59, 54-63 (1926). 



'' S. Pasternak, Compt. rend., 162, 944-946 (1916). 



•■ H. N. Griffiths and T. P. Hilditch, J. Chem. Soc, 1932, 2315-2324. 



' A. Arnaud and S. Pasternak, Compt. rend., 150, 1130-1132 (1910). 



'^ A. Arnaud and S. Pasternak, Compt. rend., 150, 1525-1528 (1910). 



' J. Boeseken, and R. Hoevers, Rec. Irav. chim., 49, 1161-1174 (1930). 



'" S. H. Bertram, Biochem. Z., 197, 433-441 (1928). 



Table 15 

 Effect of Conjugation on Melting Points of Polyethenoid Acids 



34, 



« N-C, non-conjugated; C, conjugated. 



''J. D. von Mikusch, ./. Am. Chem. Soc, 64, 1580-1582 (1942). 



