NATUUAli WAXES 



317 



two spacings (3.7 and 4.2 A.) were noted in the |3-form and only one in the 

 a-modification (4.2 A.), indicates that the change, a—^^, of the odd-chain 

 alcohols does not necessarily involve a transition from a vertical to a tilted 

 chain. 



Francis et al^* have reported the following long spacings (in A.) for the 

 aliphatic alcohols: Cis (3) 41.35; €22(18)50.0; C24 (/3) 54.25; C26 (a) 70.7, 

 (^) 58.0; C>8 (a) 75.95, (/3) 62.3; C30 (3) 66.4; C32 (^) 71.0; C34 («) 90.8, 

 (^) 74.65. 



The solubilities of the Cio to Cis alcohols have been studied in a number of 

 organic solvents by Hoerr, Harwood, and Ralston.^'^ The solubility prop- 

 erties ai'c comparable with those of the acids. The alcohols dissolve well 



Table 3 

 Solubility of Aliphatic Cm to Cis Even-Chain Alcohols in Ethyl Ether, Acetonf.. 

 AND 95% Ethanol at Varying Temperatures" 



" Aflapted from C. W. Hoerr, H. J. Ilarwood, and A. W. Ralston, ./. Org. Chem., !>, 

 267-280 (1944). 



in such a non-polar substance as diethyl ether and in such slightly polar 

 substances as trichloromethane, ethjd acetate, and butyl acetate. The}' 

 form eutectic mixtures with benzene, cyclohexane, and tetrachloromethane. 

 The alcohols are quite soluble in such moderately polar solvents as acetone 



9* F. Francis, S. H. Piper, and T. Malkin, Proc. Roy. Soc. London, A128, 214-252 

 (1930). F. Francis, F. J. E. Collins, and 8. H. Piper, ibid., A15S, 691-718 (1937). 

 95 C. W. Hoerr, H. J. Harwood, and A. W. Ralston, J. Orq. Chem., 9, 267-280 (1944). 



