The constituents of chaulmoogra seeds / by Frederick B. Power and Frank H. Gornall.
- Frederick Belding Power
- Date:
- [1904]
Licence: In copyright
Credit: The constituents of chaulmoogra seeds / by Frederick B. Power and Frank H. Gornall. Source: Wellcome Collection.
14/20 page 849
![The ferric salt, (C18H3102)3Fe, is a light brown, amorphous powder. 0*2282 gave 0*0204 Fe203. Fe = 6*3, C54H930(VFe requires Fe = 6*3 per cent. The manganous salt, (C18H3102)2Mn, is a nearly white, amorphous powder. 0*2550 gave 0*0318 Mn304. Mn = 9*0. C36H6204Mn requires Mn = 9*0 per cent. The lead salt, (C18H3102)2Pb, is a white, amorphous powder. 0*3066 gave 0*1226 PbS04. Pb = 27*3. C36H6204Pb requires Pb = 27T per cent. The copper salt, (C18H3102)2Cu, is a light green powder. 0*3936 gave 0*0490 CuO. Cu = 9*9. C36H6204Cu requires Cu = 10*2 per cent. Intermediate Fractions obtained in the Separation of Palmitic and Chaulmoogric Acids (p. 845). Fraction melting at 59—61°.—This fraction was found to boil between 230° and 240°/ll—12 mm. 10*2 grams in 100 c.c. of chloroform gave aD + 2°9' in a 50 mm. tube, whence [a]D +42*2°. 0*1032 gave 0*2868 C02 and 0*1062 H20. C = 75*7 ; H=ll*4. 0*0802 „ 0*2220 C02 „ 0*0814 H20. C = 75*5 ; H = 11*3. C18H3202 requires C = 77*l ; H = 11*4 per cent. C16H3202 „ C = 75*0 ; H = 12*5 „ C1(3H2“02 „ C = 76*2; H = 11*1 „ C14H2402 „ C = 75*0; H= 10*7 „ 0*9244 required NaOH equivalent to 35*3 c.c. of a decinormal solu¬ tion, instead of 33 c.c. or 36*1 c.c., the calculated amounts for C1SH3202 or C16H3202 respectively. 0*6944 required 0*4673 iodine. 1 = 67*3. Ci8H3202, with one ethylenic linking, requires 1 = 90*6. Ci6H28°2> » >, „ „ I = 100*7 per cent. From a consideration of these results, this fraction probably con¬ tains chaulmoogric and palmitic acids, together with an acid or acids of lower carbon content than C18, and belonging to the series CnH2W_402 with one ethylenic linking. Fraction melting at 34—35°.—This fraction distilled between 218° and 225°/ll—12 mm.](https://iiif.wellcomecollection.org/image/b30606627_0014.jp2/full/800%2C/0/default.jpg)
