62 



II. 



CHEMISTRY OF FATTY ACIDS AND GLYCEROL 



Table 24. Solubility of Saturated Fatty Acids in Ethanol" 



Grams acid dissolved per 100 grams solvent at 



Name of No. of — 



acid C atoms 0° 10° 20° 30° 40° 50° 60°C. 



99.4% Ethanol by Weight 



Laurie 12 20.4 41.6 105 292 1540 



Myristic 14 7.07 9.77 23.9 84.7 263 1560 



Palmitic 16 1.89 3.20 7.21 23.9 94.2 320 2600 



Margaric 17 2.04 2.98 6.62 22.2 110 388 8230 



Stearic 18 0.42 1.09 2.25 5.42 22.7 105 400 



95.0% Ethanol by Weight 



CapryHc 8 262 1035 co oo cxs co oo 



Pelargonic 9 393 3230 co oo co oo as 



Capric 10 60.6 93.5 440 8980 co oo oo 



Undecanoic 11 85.2 190 706 <» ra oo oo 



Laurie 12 15.2 34.0 91.2 260 1410 



Tridecanoic 13 15.5 34.5 104 336 6560 



Myristic 14 3.86 7.64 18.9 68.7 238 1485 



Peatadecanoic . . . . 15 3.82 7.18 19.5 78.5 295 2460 



Palmitic 16 0.85 2.10 4.93 16.7 73.4 287 2280 



Margaric 17 1.03 1.68 4.17 15.3 84.2 344 6560 



Stearic 18 0.24 0.65 1.13 3.42 17.1 83.9 365 



91.1% Ethanol by Weight 



Palmitic 16 0.76 1.94 4.60 15.3 _ _ _ 



Stearic 18 0.13 0.35 0.66 2.30 13.5 68.7 — 



80.8% Ethanol by Weight 



Stearic 18 ca. 0.06 0.10 0.20 0.81 3.20 50.8 238 



" X. W. Ralston and C. W. Hoerr, ./.Org. Chem., 7, 546-555 (1942), p. 549. 



Table 25. Solubility of Saturated Fatty Acids in Isopropanol'^ 



Grams acid dissolved per 100 grams solvent at 



Name of No. of — ■ 



acid C atoms 0° 10° 20° 30° 40° 50° 



C'aprylie 8 280 900 oo oo oo oo 



Pelargonic 9 422 2920 a, c» oo oo 



Capric 10 67 140 360 5750 



Undecanoic 11 82 182 540 oo oo oo 



Laurie 12 21.5 44.1 100 253 1270 



Tridecanoic 13 22.1 52 125 340 6550 



Myristic 14 7.2 13.6 31.6 82 230 1210 



Pentadecanoic . . . 15 6.2 13.3 34.4 95 272 2070 



Palmitic 16 2.4 4.6 10.9 32.3 94 270 



Margaric 17 1.2 3.0 10.8 37.9 108 345 



Stearic 18 0.1 0.4 2.0 10.0 38.1 118 



« C. W. Hoerr and A. W. Ralston, ./. Org. Chc»i., 9, 32'.)-337 (1944), p. 334. 



60°C. 



2460 



6550 



422 



