510 
Two  Isomeric  Dihromooainphors. 
Aui  Jour.  Pharm. 
Oct.,  1882. 
leaving  «-dibroniocamplior  (in.  p.  (31°).  The  greater  part  of  the  pro- 
ductj  however,  is  a  brown-red  viscid  liquid,  which,  when  mixed  with 
alcohol,  immediately  deposits  a  crystalline  powder,  having,  after 
recrystallization  from  alcoliol,  the  composition  CioHi4Br20,  and  melting 
at  114 — 115°,  which  is  the  characteristic  melting  point  of  /9-dibromo- 
camphor. 
The  dilferences  between  the  two  modifications  of  dibromocaniphor 
are  shown  in  the  following  table : 
Crystalline  form. 
Solubility 
Alcoholic  potash. 
Nascent  hydrogen  from 
sodium-amalgam  with 
dilute  alcohol. 
Nascent  hydrogen  from 
sodium-amalgam  and 
ether  saturatad  with 
hydrochloric  acid,  in 
etheric  solution. 
8odium  and  carl)onic  an- 
hydride. 
Phosphorus  i3entachloride 
Fuming  nitric  acid  
Rhombic :  a:  b:  c  = 
0-7925  :  1  :  0-5143.  Ob- 
served faces,  Qc  P  o 
P^,P5.«  p. 
Very  soluble  in  alcohol, 
ether,  ethylacetate, 
and  light  petroleum. 
Monobroniocamphor, 
and  finally  camphor, 
Monobroniocamphor  ; 
finally  camphor. 
Camphor 
Cam  ph  ocarboxy  li  c 
acid,  CnHi,0.,i  melt- 
ing at  123  to  124°. 
No  reaction 
Nitrogen  and  a  bromi- 
nated  oil. 
Rhombic  :  a  :  b  :  c  = 
0-9501  :  1   :  1-352062 
Observed  faces,  qo  P, 
P.  ,  00  p.  . 
00  '  00 
Sparingly  soluble  in  al- 
cohol, ether,  ethyl 
acetate  and  light  pe- 
troleum. 
Oil  smelling  like  tur- 
pentine, and  distilling 
between  150°  and  230°. 
Hydroxy  camphor, 
CioHi5(OH),  boihng  at 
258—260°. 
Camphor. 
Resinous  masses. 
No  reaction. 
Dibromonoiiitrocam- 
phor,  CioHisBr^NOa, 
m.  p.  126°. 
—Jour.  Chem.  Soc,  Aug.,  1882,  p.  864;  Monatsh.  Chem.,  iii. 
^Misprinted  in  the  original  C^oHgaOe- 
^The  figures  given  by  Zepharovieh  is  0-5206.  Jour.Chefu.  Soc,  1882,  p.  865. 
