84  Analysis  of  Fouquieria  Splendens.  {'^™*F*Sr^i885*'™' 
tints  to  a  fine  purple.  So  called  pure  amyl  alcohol  was  used  and  when 
tested  did  not  give  a  color  reaction  alone  with  sulphuric  acid.  The 
petroleum  spirit  residue  on  boiling  with  absolute  alcohol  and  when 
warm,  thrown  into  several  times  its  volume  of  cold  water  separated  out 
as  a  white  cloud. 
Employing  a  method  by  which  melissyl  alcohol  has  been  obtained 
from  Carnaiiba  wax,i  the  petroleum  spirit  residue  was  submitted  to  a 
like  treatment.  It  was  boiled  with  alcoholic  potash  and  saponified,, 
the  alcohol  distilled  off  and  lead  acetate  added ;  a  heavy  light-yellow 
colored  precipitate  formed,  and  on  boiling  yellow  masses  separated  out. 
They  were  washed,  dried,  and  boiled  with  absolute  ether.  The  filtered 
liquid  on  cooling  deposited  a  yellow  crystalline  substance,  which  on 
heating  on  platinum  foil  turned  black  and  disappeared.  Beyond  ascer- 
taining the  fusing  point,  solubilities,  and  color  reactions,  the  substance 
was  not  further  examined.  It  was  found  to  fuse  between  43°  C.  and 
60°  C,  the  greatest  change  occurring  between  57°  C.  and  60°  C. ;  to 
be  soluble  in  chloroform  and  ether ;  scarcely  soluble  in  cold  absolute 
alcohol;  very  slightly  soluble  in  boiling  95  per  cent,  alcohol ;  not 
acted  upon  by  nitric  acid  nor  aqua  regia.  Sulphuric  acid  dissolved  the 
substance  and  gave  an  orange  color  reaction  discolored  on  adding  alcohol, 
ether,  chloroform  and  ammonia  to  the  acid  liquid,  with  no  precipitate  ; 
with  amyl  alcohol  a  pale  rose  pink  quickly  fading,  and  with  benzol  a 
brown  color,  were  obtained.  The  color  tests  differed  from  those  ob- 
tained with  the  substance  before  saponification  and  treating  with  boiling 
ether,  indicating  that  the  petroleum  spirit  residue  can  be  separated  into 
at  least  two  substances  and  possibly  more,  which  remain  to  be  determined 
by  a  future  study. 
The  powder  exhausted  by  petroleum  spirit,  was  dried  and  similarly 
treated  with  absolute  ether  as  in  the  previous  extraction.  The  ethereal 
extract  of  a  greenish  color  gave  an  acid  reaction  with  litmus,  and  on 
addition  of  alcohol  the  liquid  became  turbid.  Spectroscopic  examina- 
tion failed  to  detect  the  characteristic  chlorophyll  bands.  The  ethereal 
residue  on  evaporation  presented  differences  in  color  and  solidity  from 
the  petroleum  spirit  residue.  It  was  quite  brittle,  and  was  not  ap- 
preciably softened  at  120°  C.  It  gave  when  dried  at  100°  C.  4*52  per 
cent,  solids  extracted,  at  110°  C.  4*44  per  cent,  and  at  120°  C.  4*42 
per  cent.    The  residue  when  evaporated  at  ordinary  temperature  was 
1  Liebig,  Aimalen,  183,  p.  344;  Watts  Diet.  Chem. 
