Am.  Jour.  Pharm. 
June,  1889. 
Oil  of  Camphor. 
279 
portion  of  quite  constant  boiling  point,  which  was  with  much  diffi- 
culty obtained  quite  pure.  It  a  had  fragrant  odor,  was  colorless, 
with  sp.  gr.  0*8933  at  16°  C,  and  of  strong  dextro-rotary  power 
=  64-8°. 
Combustions  gave  results  as  follows  : 
I.  0*1400  gm.  subst.  yielded  0*448 1  gm.  CO,  and  0.147  gm.  H20. 
II.  0*1475   "      "         "      0.4740  gm.  C02  and  0.1540  gm.  H20. 
Calculated  for  O10H16. 
Found. 
I. 
II. 
C— 88-23 
87-29 
87-64 
H— 11-77 
11-67 
11-60 
100-00 
98  96 
99-24 
Vapor  density : 
I.  0*1434  gm.  subst.  replaced  25*5  cc.  air  =  4*80. 
II.  0-1282   "     "  "      22-9  cc.  air  =  4-78. 
Calculated  for  C10H16  =  4*71. 
Fraction  L.  202-206°  C,  b.  p.  204°  C— Between  200°-208°C., 
on  repeated  distillation,  solid  camphor  separated,  which  formed  in  the 
receiver  a  semifluid  mass.  On  separating  the  fluid  portion  and  dry- 
ing the  crystals,  they  gave  on  analysis  results  for  camphor.  An  alco- 
holic solution  was  found  to  possess  dextro-rotary  power. 
Results  of  combustions: 
I.  0-1975  gm.  subst.  yielded  0-5716  gm.  C02  and  0*1930  gm.  H20. 
II.  0-205     "     "         "      0-590    "   C02  and  01940  gm.  H20. 
Calculated  for  C10H16O. 
Found. 
I. 
II. 
C— 78-94 
H— 10-53 
O— 10-53 
78  93 
10-85 
10-22 
78-49 
10-  51 
11-  00 
10000 
100-00 
100-00 
