100 PHILIPPINE RESINS, GUMS, AND OILS 
: 
€ 
tent. In compiling these results, unusual analyses representing 
small quantities of either exceedingly good or poor copra have 
not been included. These exceptional samples have: shown a 
percentage of oil as high as 71, or as low as 57.5. 
TABLE 9.—Analysis of copra and copra cake. 
[Compiled by Division of Organic Chemistry, Bureau of Science.] 










Copra. Copra cake. | 
Gonntanks: Percentage, Percentage. 
| Maxi- Mini- — > a 
a an aeee, Maximum. | Minimum. | Average. 
€ 
| Ex- | Hy-| Ex- | Hy- | Ex- | Hy- 
| pel- \drau-| pel- \drau-| pel- \drau- 
ler. | lic. | ler. | ae} | ler, \hte: 
Oreos Sa Se ee 67.4 | 62 65.5 | 15.5} 6.0] 10.5 | 4.0] 12.5] 5.0 
{ 
Ais ces ee ee Ee ee: eee at ee 4 | ee ee eee ae 5.97 5.78 5. 90 
Grude fiber: $202 22.2 ee oot ae PES eh Lae eV ge 10. 92 7.85 9.5 
Prater i seee eee ee a ee ey ee, Ae 21.44 16.8 19.9 
Moisture 2. 02- 22 ees 7.0 4.5 5.5 9.2 4.0 5.38 
Free fatty acids calculated | 
Se Oleic aici eee a ee 6.2 | 3.0 4.8 12.0 4.0 7.2 






Coconut oil in temperate climates, at ordinary temperatures, is 
a solid fat, but in tropical countries it is usually a thick liquid. « 
The high-grade oil is nearly colorless, has a bland taste, and the 
peculiar odor of coconuts. It consists largely of the glycerol 
esters of lauric and myristic acids and contains also a number 
of other fats which are the glycerol esters of still other fatty 
acids, such as caproic, capryllic, capric, and oleic. The exact 
composition of coconut oil is somewhat uncertain. € 
The physical and chemical constants of the oil obtained from 
different localities are given by various authorities as follows: 
. : LS ge eee ba tomy a ier eg see as oe 0.9259 
Specific gravity 1 EN a Se iN a Mts a ar 0.9250 
SOlidisvine InOinhie eos Ue ee LL oe 15.728 
Melime nomi ett ate stolen Wares Ot oe ere 23-25 
SaAponiication> valiewee fae ee ee 255-260 
Lodine*valtier sd. 2b eee ee ee IE I eas Lt a 8-9.5 
Reichertiyalie bese ee ee eee eds Dee Wed ee te Shoat 
Reichert=\leisslieay allie semen a meee ne ee OL ee 6.7-7.5 
Elehner value *2 23th 5 ce ee eee ee a ee 88.6-90.5 
Polenskei value *s-02. 2 ee eS 16.8 
Refractive atidex GO ge ee a ae 1.441 P 
Bubyrosreiractometerml bp: et eee eee 49.1 
Viscosity (seconds: at 140 7H )e ee 63.9-64.7 
